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Finding the Fourth Proportional to 694.81, 1,042.41 and 232.66

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Solution

The fourth proportional to 694.81, 1,042.41 and 232.66 is: 349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.81 : 1,042.41 = 232.66 : x
  2. Step 2: Convert to fraction form
    694.81/1,042.41 = 232.66/x
  3. Step 3: Cross multiply
    694.81x = 1,042.41 × 232.66
  4. Step 4: Simplify right side
    694.81x = 242,527.11
  5. Step 5: Solve for x
    x = 242,527.11/694.81
  6. Step 6: Final answer
    x = 349.06

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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.