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Finding the Fourth Proportional to 773.40, 1,067.16 and 441.87

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Solution

The fourth proportional to 773.40, 1,067.16 and 441.87 is: 609.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.40 : 1,067.16 = 441.87 : x
  2. Step 2: Convert to fraction form
    773.40/1,067.16 = 441.87/x
  3. Step 3: Cross multiply
    773.40x = 1,067.16 × 441.87
  4. Step 4: Simplify right side
    773.40x = 471,545.99
  5. Step 5: Solve for x
    x = 471,545.99/773.40
  6. Step 6: Final answer
    x = 609.71

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Why These Related Problems?

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