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Finding the Third Proportional to 336.25 and 694

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Solution

The third proportional to 336.25 and 694 is: 1,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.25 : 694 = 694 : x
  2. Step 2: Convert to fraction form
    336.25/694 = 694/x
  3. Step 3: Cross multiply
    336.25x = 694 × 694
  4. Step 4: Simplify right side
    336.25x = 481,636
  5. Step 5: Solve for x
    x = 481,636/336.25
  6. Step 6: Final answer
    x = 1,432.37

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.