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Finding the Fourth Proportional to 613,366,205.20, 920,301,250.20 and 225,374,909.20

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Solution

The fourth proportional to 613,366,205.20, 920,301,250.20 and 225,374,909.20 is: 338,154,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,366,205.20 : 920,301,250.20 = 225,374,909.20 : x
  2. Step 2: Convert to fraction form
    613,366,205.20/920,301,250.20 = 225,374,909.20/x
  3. Step 3: Cross multiply
    613,366,205.20x = 920,301,250.20 × 225,374,909.20
  4. Step 4: Simplify right side
    613,366,205.20x = 207,412,810,700,471,488
  5. Step 5: Solve for x
    x = 207,412,810,700,471,488/613,366,205.20
  6. Step 6: Final answer
    x = 338,154,937.36

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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.