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Finding the Fourth Proportional to 1,760.38, 2,429.46 and 974.54

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Solution

The fourth proportional to 1,760.38, 2,429.46 and 974.54 is: 1,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.38 : 2,429.46 = 974.54 : x
  2. Step 2: Convert to fraction form
    1,760.38/2,429.46 = 974.54/x
  3. Step 3: Cross multiply
    1,760.38x = 2,429.46 × 974.54
  4. Step 4: Simplify right side
    1,760.38x = 2,367,612.02
  5. Step 5: Solve for x
    x = 2,367,612.02/1,760.38
  6. Step 6: Final answer
    x = 1,344.95

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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.