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Finding the Fourth Proportional to 1,793.23, 2,690.01 and 697.68

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Solution

The fourth proportional to 1,793.23, 2,690.01 and 697.68 is: 1,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793.23 : 2,690.01 = 697.68 : x
  2. Step 2: Convert to fraction form
    1,793.23/2,690.01 = 697.68/x
  3. Step 3: Cross multiply
    1,793.23x = 2,690.01 × 697.68
  4. Step 4: Simplify right side
    1,793.23x = 1,876,764.56
  5. Step 5: Solve for x
    x = 1,876,764.56/1,793.23
  6. Step 6: Final answer
    x = 1,046.58

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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.