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Finding the Third Proportional to 639,556 and 923,976

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Solution

The third proportional to 639,556 and 923,976 is: 1,334,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,556 : 923,976 = 923,976 : x
  2. Step 2: Convert to fraction form
    639,556/923,976 = 923,976/x
  3. Step 3: Cross multiply
    639,556x = 923,976 × 923,976
  4. Step 4: Simplify right side
    639,556x = 853,731,648,576
  5. Step 5: Solve for x
    x = 853,731,648,576/639,556
  6. Step 6: Final answer
    x = 1,334,881.78

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.