How many times greater is the value of 4 in 640700 than the value of the 4 in 670040?

In the number 640700, the value of the 4 is 40,000, since it is in the ten-thousands place. In the number 670040, the value of the 4 is 4,000, as it is in the thousands place. To find how many times greater the value of 4 in 640700 is compared to the value of 4 in 670040, we divide 40,000 by 4,000, which equals 10. Thus, the value of 4 in 640700 is 10 times greater than in 670040.