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Finding the Fourth Proportional to 539,286.60, 809,124.30 and 519,846.60

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Solution

The fourth proportional to 539,286.60, 809,124.30 and 519,846.60 is: 779,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,286.60 : 809,124.30 = 519,846.60 : x
  2. Step 2: Convert to fraction form
    539,286.60/809,124.30 = 519,846.60/x
  3. Step 3: Cross multiply
    539,286.60x = 809,124.30 × 519,846.60
  4. Step 4: Simplify right side
    539,286.60x = 420,620,516,332.38
  5. Step 5: Solve for x
    x = 420,620,516,332.38/539,286.60
  6. Step 6: Final answer
    x = 779,957.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.