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Finding the Third Proportional to 229.50 and 494.75

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Solution

The third proportional to 229.50 and 494.75 is: 1,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.50 : 494.75 = 494.75 : x
  2. Step 2: Convert to fraction form
    229.50/494.75 = 494.75/x
  3. Step 3: Cross multiply
    229.50x = 494.75 × 494.75
  4. Step 4: Simplify right side
    229.50x = 244,777.56
  5. Step 5: Solve for x
    x = 244,777.56/229.50
  6. Step 6: Final answer
    x = 1,066.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.