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Finding the Fourth Proportional to 1,067.19, 1,472.69 and 595.07

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Solution

The fourth proportional to 1,067.19, 1,472.69 and 595.07 is: 821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.19 : 1,472.69 = 595.07 : x
  2. Step 2: Convert to fraction form
    1,067.19/1,472.69 = 595.07/x
  3. Step 3: Cross multiply
    1,067.19x = 1,472.69 × 595.07
  4. Step 4: Simplify right side
    1,067.19x = 876,350.66
  5. Step 5: Solve for x
    x = 876,350.66/1,067.19
  6. Step 6: Final answer
    x = 821.18

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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.