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Finding the Third Proportional to 436,620 and 939,642

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Solution

The third proportional to 436,620 and 939,642 is: 2,022,186.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,620 : 939,642 = 939,642 : x
  2. Step 2: Convert to fraction form
    436,620/939,642 = 939,642/x
  3. Step 3: Cross multiply
    436,620x = 939,642 × 939,642
  4. Step 4: Simplify right side
    436,620x = 882,927,088,164
  5. Step 5: Solve for x
    x = 882,927,088,164/436,620
  6. Step 6: Final answer
    x = 2,022,186.54

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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.