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Finding the Fourth Proportional to 431,279.76, 595,170.20 and 237,694.50

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Solution

The fourth proportional to 431,279.76, 595,170.20 and 237,694.50 is: 328,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,279.76 : 595,170.20 = 237,694.50 : x
  2. Step 2: Convert to fraction form
    431,279.76/595,170.20 = 237,694.50/x
  3. Step 3: Cross multiply
    431,279.76x = 595,170.20 × 237,694.50
  4. Step 4: Simplify right side
    431,279.76x = 141,468,683,103.90
  5. Step 5: Solve for x
    x = 141,468,683,103.90/431,279.76
  6. Step 6: Final answer
    x = 328,020.69

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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.