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Finding the Third Proportional to 394,174 and 864,652

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Solution

The third proportional to 394,174 and 864,652 is: 1,896,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,174 : 864,652 = 864,652 : x
  2. Step 2: Convert to fraction form
    394,174/864,652 = 864,652/x
  3. Step 3: Cross multiply
    394,174x = 864,652 × 864,652
  4. Step 4: Simplify right side
    394,174x = 747,623,081,104
  5. Step 5: Solve for x
    x = 747,623,081,104/394,174
  6. Step 6: Final answer
    x = 1,896,682.89

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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.