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Finding the Fourth Proportional to 534,434.80, 801,652.20 and 331,481.20

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Solution

The fourth proportional to 534,434.80, 801,652.20 and 331,481.20 is: 497,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,434.80 : 801,652.20 = 331,481.20 : x
  2. Step 2: Convert to fraction form
    534,434.80/801,652.20 = 331,481.20/x
  3. Step 3: Cross multiply
    534,434.80x = 801,652.20 × 331,481.20
  4. Step 4: Simplify right side
    534,434.80x = 265,732,633,238.64
  5. Step 5: Solve for x
    x = 265,732,633,238.64/534,434.80
  6. Step 6: Final answer
    x = 497,221.80

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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.