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Finding the Fourth Proportional to 992,448,220.80, 1,488,672,331.20 and 992,448,220.80

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Solution

The fourth proportional to 992,448,220.80, 1,488,672,331.20 and 992,448,220.80 is: 1,488,672,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,448,220.80 : 1,488,672,331.20 = 992,448,220.80 : x
  2. Step 2: Convert to fraction form
    992,448,220.80/1,488,672,331.20 = 992,448,220.80/x
  3. Step 3: Cross multiply
    992,448,220.80x = 1,488,672,331.20 × 992,448,220.80
  4. Step 4: Simplify right side
    992,448,220.80x = 1,477,430,206,453,628,416
  5. Step 5: Solve for x
    x = 1,477,430,206,453,628,416/992,448,220.80
  6. Step 6: Final answer
    x = 1,488,672,331.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.