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Finding the Fourth Proportional to 1,195.74, 1,793.97 and 547.02

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Solution

The fourth proportional to 1,195.74, 1,793.97 and 547.02 is: 820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.74 : 1,793.97 = 547.02 : x
  2. Step 2: Convert to fraction form
    1,195.74/1,793.97 = 547.02/x
  3. Step 3: Cross multiply
    1,195.74x = 1,793.97 × 547.02
  4. Step 4: Simplify right side
    1,195.74x = 981,337.47
  5. Step 5: Solve for x
    x = 981,337.47/1,195.74
  6. Step 6: Final answer
    x = 820.69

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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.