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Finding the Fourth Proportional to 1,691.74, 2,333.34 and 1,194.52

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Solution

The fourth proportional to 1,691.74, 2,333.34 and 1,194.52 is: 1,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.74 : 2,333.34 = 1,194.52 : x
  2. Step 2: Convert to fraction form
    1,691.74/2,333.34 = 1,194.52/x
  3. Step 3: Cross multiply
    1,691.74x = 2,333.34 × 1,194.52
  4. Step 4: Simplify right side
    1,691.74x = 2,787,221.30
  5. Step 5: Solve for x
    x = 2,787,221.30/1,691.74
  6. Step 6: Final answer
    x = 1,647.55

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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.