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Finding the Fourth Proportional to 865,809.38, 1,194,759.82 and 498,227.12

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Solution

The fourth proportional to 865,809.38, 1,194,759.82 and 498,227.12 is: 687,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,809.38 : 1,194,759.82 = 498,227.12 : x
  2. Step 2: Convert to fraction form
    865,809.38/1,194,759.82 = 498,227.12/x
  3. Step 3: Cross multiply
    865,809.38x = 1,194,759.82 × 498,227.12
  4. Step 4: Simplify right side
    865,809.38x = 595,261,738,236.52
  5. Step 5: Solve for x
    x = 595,261,738,236.52/865,809.38
  6. Step 6: Final answer
    x = 687,520.55

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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.