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Finding the Third Proportional to 394,592 and 855,580

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Solution

The third proportional to 394,592 and 855,580 is: 1,855,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,592 : 855,580 = 855,580 : x
  2. Step 2: Convert to fraction form
    394,592/855,580 = 855,580/x
  3. Step 3: Cross multiply
    394,592x = 855,580 × 855,580
  4. Step 4: Simplify right side
    394,592x = 732,017,136,400
  5. Step 5: Solve for x
    x = 732,017,136,400/394,592
  6. Step 6: Final answer
    x = 1,855,124.12

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.