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Finding the Fourth Proportional to 1,194.18, 1,791.33 and 372.57

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Solution

The fourth proportional to 1,194.18, 1,791.33 and 372.57 is: 558.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.18 : 1,791.33 = 372.57 : x
  2. Step 2: Convert to fraction form
    1,194.18/1,791.33 = 372.57/x
  3. Step 3: Cross multiply
    1,194.18x = 1,791.33 × 372.57
  4. Step 4: Simplify right side
    1,194.18x = 667,395.82
  5. Step 5: Solve for x
    x = 667,395.82/1,194.18
  6. Step 6: Final answer
    x = 558.87

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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.