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Finding the Fourth Proportional to 331,591.80, 457,805.72 and 235,000.52

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Solution

The fourth proportional to 331,591.80, 457,805.72 and 235,000.52 is: 324,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,591.80 : 457,805.72 = 235,000.52 : x
  2. Step 2: Convert to fraction form
    331,591.80/457,805.72 = 235,000.52/x
  3. Step 3: Cross multiply
    331,591.80x = 457,805.72 × 235,000.52
  4. Step 4: Simplify right side
    331,591.80x = 107,584,582,258.97
  5. Step 5: Solve for x
    x = 107,584,582,258.97/331,591.80
  6. Step 6: Final answer
    x = 324,448.86

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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.