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Finding the Fourth Proportional to 1,064.52, 1,469.30 and 754.12

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Solution

The fourth proportional to 1,064.52, 1,469.30 and 754.12 is: 1,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.52 : 1,469.30 = 754.12 : x
  2. Step 2: Convert to fraction form
    1,064.52/1,469.30 = 754.12/x
  3. Step 3: Cross multiply
    1,064.52x = 1,469.30 × 754.12
  4. Step 4: Simplify right side
    1,064.52x = 1,108,028.52
  5. Step 5: Solve for x
    x = 1,108,028.52/1,064.52
  6. Step 6: Final answer
    x = 1,040.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.