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Finding the Fourth Proportional to 356, 532.96 and 252.96

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Solution

The fourth proportional to 356, 532.96 and 252.96 is: 378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356 : 532.96 = 252.96 : x
  2. Step 2: Convert to fraction form
    356/532.96 = 252.96/x
  3. Step 3: Cross multiply
    356x = 532.96 × 252.96
  4. Step 4: Simplify right side
    356x = 134,817.56
  5. Step 5: Solve for x
    x = 134,817.56/356
  6. Step 6: Final answer
    x = 378.70

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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.