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Finding the Fourth Proportional to 922.68, 1,382.28 and 737.97

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Solution

The fourth proportional to 922.68, 1,382.28 and 737.97 is: 1,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.68 : 1,382.28 = 737.97 : x
  2. Step 2: Convert to fraction form
    922.68/1,382.28 = 737.97/x
  3. Step 3: Cross multiply
    922.68x = 1,382.28 × 737.97
  4. Step 4: Simplify right side
    922.68x = 1,020,081.17
  5. Step 5: Solve for x
    x = 1,020,081.17/922.68
  6. Step 6: Final answer
    x = 1,105.56

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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.