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Finding the Fourth Proportional to 539,761.32, 744,866.69 and 298,043.75

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Solution

The fourth proportional to 539,761.32, 744,866.69 and 298,043.75 is: 411,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,761.32 : 744,866.69 = 298,043.75 : x
  2. Step 2: Convert to fraction form
    539,761.32/744,866.69 = 298,043.75/x
  3. Step 3: Cross multiply
    539,761.32x = 744,866.69 × 298,043.75
  4. Step 4: Simplify right side
    539,761.32x = 222,002,861,909.64
  5. Step 5: Solve for x
    x = 222,002,861,909.64/539,761.32
  6. Step 6: Final answer
    x = 411,298.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.