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Finding the Fourth Proportional to 355.25, 532.97 and 282.41

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Solution

The fourth proportional to 355.25, 532.97 and 282.41 is: 423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.25 : 532.97 = 282.41 : x
  2. Step 2: Convert to fraction form
    355.25/532.97 = 282.41/x
  3. Step 3: Cross multiply
    355.25x = 532.97 × 282.41
  4. Step 4: Simplify right side
    355.25x = 150,511.98
  5. Step 5: Solve for x
    x = 150,511.98/355.25
  6. Step 6: Final answer
    x = 423.68

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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.