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Finding the Fourth Proportional to 1,363.69, 2,044.89 and 747.22

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Solution

The fourth proportional to 1,363.69, 2,044.89 and 747.22 is: 1,120.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.69 : 2,044.89 = 747.22 : x
  2. Step 2: Convert to fraction form
    1,363.69/2,044.89 = 747.22/x
  3. Step 3: Cross multiply
    1,363.69x = 2,044.89 × 747.22
  4. Step 4: Simplify right side
    1,363.69x = 1,527,982.71
  5. Step 5: Solve for x
    x = 1,527,982.71/1,363.69
  6. Step 6: Final answer
    x = 1,120.48

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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.