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Finding the Third Proportional to 394,299 and 617,733

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Solution

The third proportional to 394,299 and 617,733 is: 967,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,299 : 617,733 = 617,733 : x
  2. Step 2: Convert to fraction form
    394,299/617,733 = 617,733/x
  3. Step 3: Cross multiply
    394,299x = 617,733 × 617,733
  4. Step 4: Simplify right side
    394,299x = 381,594,059,289
  5. Step 5: Solve for x
    x = 381,594,059,289/394,299
  6. Step 6: Final answer
    x = 967,778.41

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.