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Finding the Fourth Proportional to 974.52, 1,344.82 and 576.04

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Solution

The fourth proportional to 974.52, 1,344.82 and 576.04 is: 794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.52 : 1,344.82 = 576.04 : x
  2. Step 2: Convert to fraction form
    974.52/1,344.82 = 576.04/x
  3. Step 3: Cross multiply
    974.52x = 1,344.82 × 576.04
  4. Step 4: Simplify right side
    974.52x = 774,670.11
  5. Step 5: Solve for x
    x = 774,670.11/974.52
  6. Step 6: Final answer
    x = 794.92

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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.