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Finding the Third Proportional to 297 and 656.44

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Solution

The third proportional to 297 and 656.44 is: 1,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    297 : 656.44 = 656.44 : x
  2. Step 2: Convert to fraction form
    297/656.44 = 656.44/x
  3. Step 3: Cross multiply
    297x = 656.44 × 656.44
  4. Step 4: Simplify right side
    297x = 430,910.19
  5. Step 5: Solve for x
    x = 430,910.19/297
  6. Step 6: Final answer
    x = 1,450.88

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.