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Finding the Fourth Proportional to 1,565.29, 2,348.49 and 744.22

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Solution

The fourth proportional to 1,565.29, 2,348.49 and 744.22 is: 1,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.29 : 2,348.49 = 744.22 : x
  2. Step 2: Convert to fraction form
    1,565.29/2,348.49 = 744.22/x
  3. Step 3: Cross multiply
    1,565.29x = 2,348.49 × 744.22
  4. Step 4: Simplify right side
    1,565.29x = 1,747,793.23
  5. Step 5: Solve for x
    x = 1,747,793.23/1,565.29
  6. Step 6: Final answer
    x = 1,116.59

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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.