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Finding the Third Proportional to 214,276 and 326,406

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Solution

The third proportional to 214,276 and 326,406 is: 497,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,276 : 326,406 = 326,406 : x
  2. Step 2: Convert to fraction form
    214,276/326,406 = 326,406/x
  3. Step 3: Cross multiply
    214,276x = 326,406 × 326,406
  4. Step 4: Simplify right side
    214,276x = 106,540,876,836
  5. Step 5: Solve for x
    x = 106,540,876,836/214,276
  6. Step 6: Final answer
    x = 497,213.30

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.