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Finding the Fourth Proportional to 1,163.14, 1,743.78 and 796.82

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Solution

The fourth proportional to 1,163.14, 1,743.78 and 796.82 is: 1,194.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.14 : 1,743.78 = 796.82 : x
  2. Step 2: Convert to fraction form
    1,163.14/1,743.78 = 796.82/x
  3. Step 3: Cross multiply
    1,163.14x = 1,743.78 × 796.82
  4. Step 4: Simplify right side
    1,163.14x = 1,389,473.05
  5. Step 5: Solve for x
    x = 1,389,473.05/1,163.14
  6. Step 6: Final answer
    x = 1,194.59

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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.