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Finding the Fourth Proportional to 1,073.44, 1,610.16 and 749.44

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Solution

The fourth proportional to 1,073.44, 1,610.16 and 749.44 is: 1,124.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.44 : 1,610.16 = 749.44 : x
  2. Step 2: Convert to fraction form
    1,073.44/1,610.16 = 749.44/x
  3. Step 3: Cross multiply
    1,073.44x = 1,610.16 × 749.44
  4. Step 4: Simplify right side
    1,073.44x = 1,206,718.31
  5. Step 5: Solve for x
    x = 1,206,718.31/1,073.44
  6. Step 6: Final answer
    x = 1,124.16

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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.