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Finding the Third Proportional to 631,132 and 1,377,912

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Solution

The third proportional to 631,132 and 1,377,912 is: 3,008,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,132 : 1,377,912 = 1,377,912 : x
  2. Step 2: Convert to fraction form
    631,132/1,377,912 = 1,377,912/x
  3. Step 3: Cross multiply
    631,132x = 1,377,912 × 1,377,912
  4. Step 4: Simplify right side
    631,132x = 1,898,641,479,744
  5. Step 5: Solve for x
    x = 1,898,641,479,744/631,132
  6. Step 6: Final answer
    x = 3,008,311.22

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.