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Finding the Third Proportional to 212,377 and 456,235

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Solution

The third proportional to 212,377 and 456,235 is: 980,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,377 : 456,235 = 456,235 : x
  2. Step 2: Convert to fraction form
    212,377/456,235 = 456,235/x
  3. Step 3: Cross multiply
    212,377x = 456,235 × 456,235
  4. Step 4: Simplify right side
    212,377x = 208,150,375,225
  5. Step 5: Solve for x
    x = 208,150,375,225/212,377
  6. Step 6: Final answer
    x = 980,098.48

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.