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Finding the Fourth Proportional to 1,154.97, 1,732.46 and 424.04

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Solution

The fourth proportional to 1,154.97, 1,732.46 and 424.04 is: 636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.97 : 1,732.46 = 424.04 : x
  2. Step 2: Convert to fraction form
    1,154.97/1,732.46 = 424.04/x
  3. Step 3: Cross multiply
    1,154.97x = 1,732.46 × 424.04
  4. Step 4: Simplify right side
    1,154.97x = 734,621.56
  5. Step 5: Solve for x
    x = 734,621.56/1,154.97
  6. Step 6: Final answer
    x = 636.05

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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.