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Finding the Fourth Proportional to 484.14, 726.33 and 267.42

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Solution

The fourth proportional to 484.14, 726.33 and 267.42 is: 401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.14 : 726.33 = 267.42 : x
  2. Step 2: Convert to fraction form
    484.14/726.33 = 267.42/x
  3. Step 3: Cross multiply
    484.14x = 726.33 × 267.42
  4. Step 4: Simplify right side
    484.14x = 194,235.17
  5. Step 5: Solve for x
    x = 194,235.17/484.14
  6. Step 6: Final answer
    x = 401.20

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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.