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Finding the Third Proportional to 331 and 704

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Solution

The third proportional to 331 and 704 is: 1,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331 : 704 = 704 : x
  2. Step 2: Convert to fraction form
    331/704 = 704/x
  3. Step 3: Cross multiply
    331x = 704 × 704
  4. Step 4: Simplify right side
    331x = 495,616
  5. Step 5: Solve for x
    x = 495,616/331
  6. Step 6: Final answer
    x = 1,497.33

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.