How do I round this number to the nearest ten thousand: 624,739?

To round the number 624,739 to the nearest ten thousand, you need to follow these steps:

1. Identify the digit in the ten thousands place: In the number 624,739, the digit in the ten thousands place is 2.
2. Look at the digit immediately to the right: The digit immediately to the right of the 2 is 4, which is in the thousands place.
3. Apply the rounding rule:
   • If the digit to the right is 4 or less, you leave the digit in the ten thousands place unchanged and replace all digits to the right with zeros.
   • If the digit to the right is 5 or greater, you add 1 to the digit in the ten thousands place and replace all digits to the right with zeros.

Since the digit to the right (4) is less than 5, you leave the 2 in the ten thousands place unchanged and replace all digits to the right with zeros.

Therefore, 624,739 rounded to the nearest ten thousand is 620,000134.