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Finding the Third Proportional to 225.75 and 494.25

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Solution

The third proportional to 225.75 and 494.25 is: 1,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.75 : 494.25 = 494.25 : x
  2. Step 2: Convert to fraction form
    225.75/494.25 = 494.25/x
  3. Step 3: Cross multiply
    225.75x = 494.25 × 494.25
  4. Step 4: Simplify right side
    225.75x = 244,283.06
  5. Step 5: Solve for x
    x = 244,283.06/225.75
  6. Step 6: Final answer
    x = 1,082.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.