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Finding the Third Proportional to 890,631 and 1,868,739.75

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Solution

The third proportional to 890,631 and 1,868,739.75 is: 3,921,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,631 : 1,868,739.75 = 1,868,739.75 : x
  2. Step 2: Convert to fraction form
    890,631/1,868,739.75 = 1,868,739.75/x
  3. Step 3: Cross multiply
    890,631x = 1,868,739.75 × 1,868,739.75
  4. Step 4: Simplify right side
    890,631x = 3,492,188,253,230.06
  5. Step 5: Solve for x
    x = 3,492,188,253,230.06/890,631
  6. Step 6: Final answer
    x = 3,921,027.06

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.