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Finding the Fourth Proportional to 1,494.69, 2,062.44 and 865.26

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Solution

The fourth proportional to 1,494.69, 2,062.44 and 865.26 is: 1,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,494.69 : 2,062.44 = 865.26 : x
  2. Step 2: Convert to fraction form
    1,494.69/2,062.44 = 865.26/x
  3. Step 3: Cross multiply
    1,494.69x = 2,062.44 × 865.26
  4. Step 4: Simplify right side
    1,494.69x = 1,784,546.83
  5. Step 5: Solve for x
    x = 1,784,546.83/1,494.69
  6. Step 6: Final answer
    x = 1,193.92

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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.