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Finding the Fourth Proportional to 1,166.62, 1,610.44 and 834.47

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Solution

The fourth proportional to 1,166.62, 1,610.44 and 834.47 is: 1,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.62 : 1,610.44 = 834.47 : x
  2. Step 2: Convert to fraction form
    1,166.62/1,610.44 = 834.47/x
  3. Step 3: Cross multiply
    1,166.62x = 1,610.44 × 834.47
  4. Step 4: Simplify right side
    1,166.62x = 1,343,863.87
  5. Step 5: Solve for x
    x = 1,343,863.87/1,166.62
  6. Step 6: Final answer
    x = 1,151.93

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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.