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Finding the Third Proportional to 436,624 and 939,638

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Solution

The third proportional to 436,624 and 939,638 is: 2,022,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,624 : 939,638 = 939,638 : x
  2. Step 2: Convert to fraction form
    436,624/939,638 = 939,638/x
  3. Step 3: Cross multiply
    436,624x = 939,638 × 939,638
  4. Step 4: Simplify right side
    436,624x = 882,919,571,044
  5. Step 5: Solve for x
    x = 882,919,571,044/436,624
  6. Step 6: Final answer
    x = 2,022,150.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.