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Finding the Third Proportional to 394,533 and 863,667

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Solution

The third proportional to 394,533 and 863,667 is: 1,890,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,533 : 863,667 = 863,667 : x
  2. Step 2: Convert to fraction form
    394,533/863,667 = 863,667/x
  3. Step 3: Cross multiply
    394,533x = 863,667 × 863,667
  4. Step 4: Simplify right side
    394,533x = 745,920,686,889
  5. Step 5: Solve for x
    x = 745,920,686,889/394,533
  6. Step 6: Final answer
    x = 1,890,642.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.