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Finding the Third Proportional to 631,914 and 1,391,916

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Solution

The third proportional to 631,914 and 1,391,916 is: 3,065,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,914 : 1,391,916 = 1,391,916 : x
  2. Step 2: Convert to fraction form
    631,914/1,391,916 = 1,391,916/x
  3. Step 3: Cross multiply
    631,914x = 1,391,916 × 1,391,916
  4. Step 4: Simplify right side
    631,914x = 1,937,430,151,056
  5. Step 5: Solve for x
    x = 1,937,430,151,056/631,914
  6. Step 6: Final answer
    x = 3,065,971.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.