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Finding the Third Proportional to 996,921 and 2,193,120

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Solution

The third proportional to 996,921 and 2,193,120 is: 4,824,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,921 : 2,193,120 = 2,193,120 : x
  2. Step 2: Convert to fraction form
    996,921/2,193,120 = 2,193,120/x
  3. Step 3: Cross multiply
    996,921x = 2,193,120 × 2,193,120
  4. Step 4: Simplify right side
    996,921x = 4,809,775,334,400
  5. Step 5: Solve for x
    x = 4,809,775,334,400/996,921
  6. Step 6: Final answer
    x = 4,824,630.37

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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.