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Finding the Third Proportional to 297.25 and 457.50

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Solution

The third proportional to 297.25 and 457.50 is: 704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.25 : 457.50 = 457.50 : x
  2. Step 2: Convert to fraction form
    297.25/457.50 = 457.50/x
  3. Step 3: Cross multiply
    297.25x = 457.50 × 457.50
  4. Step 4: Simplify right side
    297.25x = 209,306.25
  5. Step 5: Solve for x
    x = 209,306.25/297.25
  6. Step 6: Final answer
    x = 704.14

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.