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Finding the Fourth Proportional to 974.32, 1,463.22 and 935.18

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Solution

The fourth proportional to 974.32, 1,463.22 and 935.18 is: 1,404.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.32 : 1,463.22 = 935.18 : x
  2. Step 2: Convert to fraction form
    974.32/1,463.22 = 935.18/x
  3. Step 3: Cross multiply
    974.32x = 1,463.22 × 935.18
  4. Step 4: Simplify right side
    974.32x = 1,368,374.08
  5. Step 5: Solve for x
    x = 1,368,374.08/974.32
  6. Step 6: Final answer
    x = 1,404.44

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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.