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Finding the Fourth Proportional to 966.35, 1,449.11 and 527.96

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Solution

The fourth proportional to 966.35, 1,449.11 and 527.96 is: 791.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.35 : 1,449.11 = 527.96 : x
  2. Step 2: Convert to fraction form
    966.35/1,449.11 = 527.96/x
  3. Step 3: Cross multiply
    966.35x = 1,449.11 × 527.96
  4. Step 4: Simplify right side
    966.35x = 765,062.23
  5. Step 5: Solve for x
    x = 765,062.23/966.35
  6. Step 6: Final answer
    x = 791.71

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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.