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Finding the Fourth Proportional to 2,873,930.22, 3,965,994.45 and 1,567,179.09

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Solution

The fourth proportional to 2,873,930.22, 3,965,994.45 and 1,567,179.09 is: 2,162,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873,930.22 : 3,965,994.45 = 1,567,179.09 : x
  2. Step 2: Convert to fraction form
    2,873,930.22/3,965,994.45 = 1,567,179.09/x
  3. Step 3: Cross multiply
    2,873,930.22x = 3,965,994.45 × 1,567,179.09
  4. Step 4: Simplify right side
    2,873,930.22x = 6,215,423,573,096.05
  5. Step 5: Solve for x
    x = 6,215,423,573,096.05/2,873,930.22
  6. Step 6: Final answer
    x = 2,162,691.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.