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Finding the Third Proportional to 198,418 and 468,305

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Solution

The third proportional to 198,418 and 468,305 is: 1,105,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,418 : 468,305 = 468,305 : x
  2. Step 2: Convert to fraction form
    198,418/468,305 = 468,305/x
  3. Step 3: Cross multiply
    198,418x = 468,305 × 468,305
  4. Step 4: Simplify right side
    198,418x = 219,309,573,025
  5. Step 5: Solve for x
    x = 219,309,573,025/198,418
  6. Step 6: Final answer
    x = 1,105,290.71

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.