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Finding the Fourth Proportional to 963.28, 1,443 and 732.56

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Solution

The fourth proportional to 963.28, 1,443 and 732.56 is: 1,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.28 : 1,443 = 732.56 : x
  2. Step 2: Convert to fraction form
    963.28/1,443 = 732.56/x
  3. Step 3: Cross multiply
    963.28x = 1,443 × 732.56
  4. Step 4: Simplify right side
    963.28x = 1,057,084.08
  5. Step 5: Solve for x
    x = 1,057,084.08/963.28
  6. Step 6: Final answer
    x = 1,097.38

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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.