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Finding the Third Proportional to 297.49 and 446.45

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Solution

The third proportional to 297.49 and 446.45 is: 669.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.49 : 446.45 = 446.45 : x
  2. Step 2: Convert to fraction form
    297.49/446.45 = 446.45/x
  3. Step 3: Cross multiply
    297.49x = 446.45 × 446.45
  4. Step 4: Simplify right side
    297.49x = 199,316.90
  5. Step 5: Solve for x
    x = 199,316.90/297.49
  6. Step 6: Final answer
    x = 669.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.