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Finding the Fourth Proportional to 932.64, 1,397.66 and 726.27

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Solution

The fourth proportional to 932.64, 1,397.66 and 726.27 is: 1,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.64 : 1,397.66 = 726.27 : x
  2. Step 2: Convert to fraction form
    932.64/1,397.66 = 726.27/x
  3. Step 3: Cross multiply
    932.64x = 1,397.66 × 726.27
  4. Step 4: Simplify right side
    932.64x = 1,015,074.90
  5. Step 5: Solve for x
    x = 1,015,074.90/932.64
  6. Step 6: Final answer
    x = 1,088.39

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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.