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Finding the Fourth Proportional to 352, 527.72 and 197.92

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Solution

The fourth proportional to 352, 527.72 and 197.92 is: 296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352 : 527.72 = 197.92 : x
  2. Step 2: Convert to fraction form
    352/527.72 = 197.92/x
  3. Step 3: Cross multiply
    352x = 527.72 × 197.92
  4. Step 4: Simplify right side
    352x = 104,446.34
  5. Step 5: Solve for x
    x = 104,446.34/352
  6. Step 6: Final answer
    x = 296.72

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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.