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Finding the Fourth Proportional to 534,688.80, 801,158.16 and 323,687.20

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Solution

The fourth proportional to 534,688.80, 801,158.16 and 323,687.20 is: 485,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,688.80 : 801,158.16 = 323,687.20 : x
  2. Step 2: Convert to fraction form
    534,688.80/801,158.16 = 323,687.20/x
  3. Step 3: Cross multiply
    534,688.80x = 801,158.16 × 323,687.20
  4. Step 4: Simplify right side
    534,688.80x = 259,324,641,567.55
  5. Step 5: Solve for x
    x = 259,324,641,567.55/534,688.80
  6. Step 6: Final answer
    x = 485,001.07

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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.