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Finding the Fourth Proportional to 974.12, 1,344.24 and 531.94

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Solution

The fourth proportional to 974.12, 1,344.24 and 531.94 is: 734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.12 : 1,344.24 = 531.94 : x
  2. Step 2: Convert to fraction form
    974.12/1,344.24 = 531.94/x
  3. Step 3: Cross multiply
    974.12x = 1,344.24 × 531.94
  4. Step 4: Simplify right side
    974.12x = 715,045.64
  5. Step 5: Solve for x
    x = 715,045.64/974.12
  6. Step 6: Final answer
    x = 734.04

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