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Finding the Third Proportional to 394,588 and 855,573

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Solution

The third proportional to 394,588 and 855,573 is: 1,855,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,588 : 855,573 = 855,573 : x
  2. Step 2: Convert to fraction form
    394,588/855,573 = 855,573/x
  3. Step 3: Cross multiply
    394,588x = 855,573 × 855,573
  4. Step 4: Simplify right side
    394,588x = 732,005,158,329
  5. Step 5: Solve for x
    x = 732,005,158,329/394,588
  6. Step 6: Final answer
    x = 1,855,112.57

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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.