In the number 687,760, the higher place value 7 is in the hundred-thousands place, which has a value of 700,000. The lower place value 7 is in the tens place, which has a value of 70.
To find out how many times greater the higher place value is than the lower place value, you can divide the higher value by the lower value:
\[ \frac{700,000}{70} = 10,000 \]
Therefore, the higher place value 7 is ten thousand times greater than the lower place value 7.
The correct response is not given in the options you've listed. If you have options, consider checking again, but based on the calculation, it's 10,000 times greater.