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Finding the Fourth Proportional to 1,067.38, 1,472.99 and 595.30

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Solution

The fourth proportional to 1,067.38, 1,472.99 and 595.30 is: 821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.38 : 1,472.99 = 595.30 : x
  2. Step 2: Convert to fraction form
    1,067.38/1,472.99 = 595.30/x
  3. Step 3: Cross multiply
    1,067.38x = 1,472.99 × 595.30
  4. Step 4: Simplify right side
    1,067.38x = 876,867.97
  5. Step 5: Solve for x
    x = 876,867.97/1,067.38
  6. Step 6: Final answer
    x = 821.52

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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.