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Finding the Fourth Proportional to 974.24, 1,344.45 and 532.14

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Solution

The fourth proportional to 974.24, 1,344.45 and 532.14 is: 734.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.24 : 1,344.45 = 532.14 : x
  2. Step 2: Convert to fraction form
    974.24/1,344.45 = 532.14/x
  3. Step 3: Cross multiply
    974.24x = 1,344.45 × 532.14
  4. Step 4: Simplify right side
    974.24x = 715,435.62
  5. Step 5: Solve for x
    x = 715,435.62/974.24
  6. Step 6: Final answer
    x = 734.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.