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Finding the Fourth Proportional to 636,431.87, 955,063.13 and 237,391.85

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Solution

The fourth proportional to 636,431.87, 955,063.13 and 237,391.85 is: 356,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,431.87 : 955,063.13 = 237,391.85 : x
  2. Step 2: Convert to fraction form
    636,431.87/955,063.13 = 237,391.85/x
  3. Step 3: Cross multiply
    636,431.87x = 955,063.13 × 237,391.85
  4. Step 4: Simplify right side
    636,431.87x = 226,724,197,335.22
  5. Step 5: Solve for x
    x = 226,724,197,335.22/636,431.87
  6. Step 6: Final answer
    x = 356,242.69

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Why These Related Problems?

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