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Finding the Fourth Proportional to 1,093.91, 1,508.24 and 883.31

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Solution

The fourth proportional to 1,093.91, 1,508.24 and 883.31 is: 1,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093.91 : 1,508.24 = 883.31 : x
  2. Step 2: Convert to fraction form
    1,093.91/1,508.24 = 883.31/x
  3. Step 3: Cross multiply
    1,093.91x = 1,508.24 × 883.31
  4. Step 4: Simplify right side
    1,093.91x = 1,332,239.06
  5. Step 5: Solve for x
    x = 1,332,239.06/1,093.91
  6. Step 6: Final answer
    x = 1,217.87

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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.