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Finding the Third Proportional to 639,554 and 923,973

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Solution

The third proportional to 639,554 and 923,973 is: 1,334,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,554 : 923,973 = 923,973 : x
  2. Step 2: Convert to fraction form
    639,554/923,973 = 923,973/x
  3. Step 3: Cross multiply
    639,554x = 923,973 × 923,973
  4. Step 4: Simplify right side
    639,554x = 853,726,104,729
  5. Step 5: Solve for x
    x = 853,726,104,729/639,554
  6. Step 6: Final answer
    x = 1,334,877.28

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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.