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Finding the Third Proportional to 998,888.63 and 2,157,385.22

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Solution

The third proportional to 998,888.63 and 2,157,385.22 is: 4,659,489.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,888.63 : 2,157,385.22 = 2,157,385.22 : x
  2. Step 2: Convert to fraction form
    998,888.63/2,157,385.22 = 2,157,385.22/x
  3. Step 3: Cross multiply
    998,888.63x = 2,157,385.22 × 2,157,385.22
  4. Step 4: Simplify right side
    998,888.63x = 4,654,310,982,080.99
  5. Step 5: Solve for x
    x = 4,654,310,982,080.99/998,888.63
  6. Step 6: Final answer
    x = 4,659,489.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.