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Finding the Fourth Proportional to 482,591.15, 666,034.85 and 278,641.73

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Solution

The fourth proportional to 482,591.15, 666,034.85 and 278,641.73 is: 384,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,591.15 : 666,034.85 = 278,641.73 : x
  2. Step 2: Convert to fraction form
    482,591.15/666,034.85 = 278,641.73/x
  3. Step 3: Cross multiply
    482,591.15x = 666,034.85 × 278,641.73
  4. Step 4: Simplify right side
    482,591.15x = 185,585,098,120.91
  5. Step 5: Solve for x
    x = 185,585,098,120.91/482,591.15
  6. Step 6: Final answer
    x = 384,559.68

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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.