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Finding the Fourth Proportional to 1,024.44, 1,414.08 and 709.44

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Solution

The fourth proportional to 1,024.44, 1,414.08 and 709.44 is: 979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.44 : 1,414.08 = 709.44 : x
  2. Step 2: Convert to fraction form
    1,024.44/1,414.08 = 709.44/x
  3. Step 3: Cross multiply
    1,024.44x = 1,414.08 × 709.44
  4. Step 4: Simplify right side
    1,024.44x = 1,003,204.92
  5. Step 5: Solve for x
    x = 1,003,204.92/1,024.44
  6. Step 6: Final answer
    x = 979.27

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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.