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Finding the Fourth Proportional to 951.72, 1,313.49 and 532.14

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Solution

The fourth proportional to 951.72, 1,313.49 and 532.14 is: 734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.72 : 1,313.49 = 532.14 : x
  2. Step 2: Convert to fraction form
    951.72/1,313.49 = 532.14/x
  3. Step 3: Cross multiply
    951.72x = 1,313.49 × 532.14
  4. Step 4: Simplify right side
    951.72x = 698,960.57
  5. Step 5: Solve for x
    x = 698,960.57/951.72
  6. Step 6: Final answer
    x = 734.42

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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.