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Finding the Fourth Proportional to 539,805.60, 809,708.40 and 531,932.40

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Solution

The fourth proportional to 539,805.60, 809,708.40 and 531,932.40 is: 797,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,805.60 : 809,708.40 = 531,932.40 : x
  2. Step 2: Convert to fraction form
    539,805.60/809,708.40 = 531,932.40/x
  3. Step 3: Cross multiply
    539,805.60x = 809,708.40 × 531,932.40
  4. Step 4: Simplify right side
    539,805.60x = 430,710,132,512.16
  5. Step 5: Solve for x
    x = 430,710,132,512.16/539,805.60
  6. Step 6: Final answer
    x = 797,898.60

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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.