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Finding the Fourth Proportional to 1,414.73, 1,952.44 and 855.23

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Solution

The fourth proportional to 1,414.73, 1,952.44 and 855.23 is: 1,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.73 : 1,952.44 = 855.23 : x
  2. Step 2: Convert to fraction form
    1,414.73/1,952.44 = 855.23/x
  3. Step 3: Cross multiply
    1,414.73x = 1,952.44 × 855.23
  4. Step 4: Simplify right side
    1,414.73x = 1,669,773.36
  5. Step 5: Solve for x
    x = 1,669,773.36/1,414.73
  6. Step 6: Final answer
    x = 1,180.27

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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.