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Finding the Third Proportional to 906,978 and 1,372,190

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Solution

The third proportional to 906,978 and 1,372,190 is: 2,076,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,978 : 1,372,190 = 1,372,190 : x
  2. Step 2: Convert to fraction form
    906,978/1,372,190 = 1,372,190/x
  3. Step 3: Cross multiply
    906,978x = 1,372,190 × 1,372,190
  4. Step 4: Simplify right side
    906,978x = 1,882,905,396,100
  5. Step 5: Solve for x
    x = 1,882,905,396,100/906,978
  6. Step 6: Final answer
    x = 2,076,021.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.