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Finding the Fourth Proportional to 694.76, 1,042.16 and 232.52

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Solution

The fourth proportional to 694.76, 1,042.16 and 232.52 is: 348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.76 : 1,042.16 = 232.52 : x
  2. Step 2: Convert to fraction form
    694.76/1,042.16 = 232.52/x
  3. Step 3: Cross multiply
    694.76x = 1,042.16 × 232.52
  4. Step 4: Simplify right side
    694.76x = 242,316.67
  5. Step 5: Solve for x
    x = 242,316.67/694.76
  6. Step 6: Final answer
    x = 348.78

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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.