1. Move the decimal point:

Start with the number: 4,500,000.

Move the decimal point to the left until you have a number between 1 and 10.

In this case, you'll move it six places to the left: 4.5

2. Count the decimal places:

You moved the decimal point six places to the left.

3. Write the number in scientific notation:

The scientific notation is 4.5 x 10⁶

Explanation:

* 4.5 is the number between 1 and 10.

* 10⁶ indicates that you moved the decimal point six places to the left.

Therefore, 4,500,000 meters in scientific notation is 4.5 x 10⁶ meters.