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Finding the Third Proportional to 196 and 447

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Solution

The third proportional to 196 and 447 is: 1,019.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    196 : 447 = 447 : x
  2. Step 2: Convert to fraction form
    196/447 = 447/x
  3. Step 3: Cross multiply
    196x = 447 × 447
  4. Step 4: Simplify right side
    196x = 199,809
  5. Step 5: Solve for x
    x = 199,809/196
  6. Step 6: Final answer
    x = 1,019.43

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.