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Finding the Fourth Proportional to 951.77, 1,313.47 and 532.11

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Solution

The fourth proportional to 951.77, 1,313.47 and 532.11 is: 734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.77 : 1,313.47 = 532.11 : x
  2. Step 2: Convert to fraction form
    951.77/1,313.47 = 532.11/x
  3. Step 3: Cross multiply
    951.77x = 1,313.47 × 532.11
  4. Step 4: Simplify right side
    951.77x = 698,910.52
  5. Step 5: Solve for x
    x = 698,910.52/951.77
  6. Step 6: Final answer
    x = 734.33

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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.