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Finding the Fourth Proportional to 1,729.28, 2,593.91 and 496.70

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Solution

The fourth proportional to 1,729.28, 2,593.91 and 496.70 is: 745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.28 : 2,593.91 = 496.70 : x
  2. Step 2: Convert to fraction form
    1,729.28/2,593.91 = 496.70/x
  3. Step 3: Cross multiply
    1,729.28x = 2,593.91 × 496.70
  4. Step 4: Simplify right side
    1,729.28x = 1,288,395.10
  5. Step 5: Solve for x
    x = 1,288,395.10/1,729.28
  6. Step 6: Final answer
    x = 745.05

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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.