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Finding the Fourth Proportional to 354.78, 532.16 and 250.23

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Solution

The fourth proportional to 354.78, 532.16 and 250.23 is: 375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.78 : 532.16 = 250.23 : x
  2. Step 2: Convert to fraction form
    354.78/532.16 = 250.23/x
  3. Step 3: Cross multiply
    354.78x = 532.16 × 250.23
  4. Step 4: Simplify right side
    354.78x = 133,161.77
  5. Step 5: Solve for x
    x = 133,161.77/354.78
  6. Step 6: Final answer
    x = 375.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.