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Finding the Third Proportional to 631,972 and 1,403,912

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Solution

The third proportional to 631,972 and 1,403,912 is: 3,118,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,972 : 1,403,912 = 1,403,912 : x
  2. Step 2: Convert to fraction form
    631,972/1,403,912 = 1,403,912/x
  3. Step 3: Cross multiply
    631,972x = 1,403,912 × 1,403,912
  4. Step 4: Simplify right side
    631,972x = 1,970,968,903,744
  5. Step 5: Solve for x
    x = 1,970,968,903,744/631,972
  6. Step 6: Final answer
    x = 3,118,759.86

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.