Final answer:
The magnitude of 548,100,000 is 548 million.
Step-by-step explanation:
The magnitude of 548,100,000 is 548 million.
To determine the magnitude, you count the number of digits in the given number and then divide it by three. If the number of digits is not divisible by three, round down the quotient to the nearest whole number. This will give you the magnitude in terms of millions, billions, trillions, etc. In this case, 548,100,000 has nine digits, which is divisible by three, so the magnitude is 548 million.