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Finding the Fourth Proportional to 521,593.20, 782,098.20 and 222,022.80

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Solution

The fourth proportional to 521,593.20, 782,098.20 and 222,022.80 is: 332,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,593.20 : 782,098.20 = 222,022.80 : x
  2. Step 2: Convert to fraction form
    521,593.20/782,098.20 = 222,022.80/x
  3. Step 3: Cross multiply
    521,593.20x = 782,098.20 × 222,022.80
  4. Step 4: Simplify right side
    521,593.20x = 173,643,632,238.96
  5. Step 5: Solve for x
    x = 173,643,632,238.96/521,593.20
  6. Step 6: Final answer
    x = 332,910.08

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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.