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Finding the Third Proportional to 322,421 and 683,244

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Solution

The third proportional to 322,421 and 683,244 is: 1,447,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,421 : 683,244 = 683,244 : x
  2. Step 2: Convert to fraction form
    322,421/683,244 = 683,244/x
  3. Step 3: Cross multiply
    322,421x = 683,244 × 683,244
  4. Step 4: Simplify right side
    322,421x = 466,822,363,536
  5. Step 5: Solve for x
    x = 466,822,363,536/322,421
  6. Step 6: Final answer
    x = 1,447,865.88

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.