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Finding the Third Proportional to 890,132 and 1,912,976

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Solution

The third proportional to 890,132 and 1,912,976 is: 4,111,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,132 : 1,912,976 = 1,912,976 : x
  2. Step 2: Convert to fraction form
    890,132/1,912,976 = 1,912,976/x
  3. Step 3: Cross multiply
    890,132x = 1,912,976 × 1,912,976
  4. Step 4: Simplify right side
    890,132x = 3,659,477,176,576
  5. Step 5: Solve for x
    x = 3,659,477,176,576/890,132
  6. Step 6: Final answer
    x = 4,111,162.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.