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Finding the Fourth Proportional to 1,067.88, 1,473.52 and 625.92

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Solution

The fourth proportional to 1,067.88, 1,473.52 and 625.92 is: 863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.88 : 1,473.52 = 625.92 : x
  2. Step 2: Convert to fraction form
    1,067.88/1,473.52 = 625.92/x
  3. Step 3: Cross multiply
    1,067.88x = 1,473.52 × 625.92
  4. Step 4: Simplify right side
    1,067.88x = 922,305.64
  5. Step 5: Solve for x
    x = 922,305.64/1,067.88
  6. Step 6: Final answer
    x = 863.68

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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.