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Finding the Third Proportional to 394,934 and 564,360

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Solution

The third proportional to 394,934 and 564,360 is: 806,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,934 : 564,360 = 564,360 : x
  2. Step 2: Convert to fraction form
    394,934/564,360 = 564,360/x
  3. Step 3: Cross multiply
    394,934x = 564,360 × 564,360
  4. Step 4: Simplify right side
    394,934x = 318,502,209,600
  5. Step 5: Solve for x
    x = 318,502,209,600/394,934
  6. Step 6: Final answer
    x = 806,469.46

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.