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Finding the Third Proportional to 222,380 and 327,688

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Solution

The third proportional to 222,380 and 327,688 is: 482,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,380 : 327,688 = 327,688 : x
  2. Step 2: Convert to fraction form
    222,380/327,688 = 327,688/x
  3. Step 3: Cross multiply
    222,380x = 327,688 × 327,688
  4. Step 4: Simplify right side
    222,380x = 107,379,425,344
  5. Step 5: Solve for x
    x = 107,379,425,344/222,380
  6. Step 6: Final answer
    x = 482,864.58

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.