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Finding the Fourth Proportional to 974.16, 1,344.30 and 532.06

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Solution

The fourth proportional to 974.16, 1,344.30 and 532.06 is: 734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.16 : 1,344.30 = 532.06 : x
  2. Step 2: Convert to fraction form
    974.16/1,344.30 = 532.06/x
  3. Step 3: Cross multiply
    974.16x = 1,344.30 × 532.06
  4. Step 4: Simplify right side
    974.16x = 715,248.26
  5. Step 5: Solve for x
    x = 715,248.26/974.16
  6. Step 6: Final answer
    x = 734.22

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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.