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Finding the Fourth Proportional to 2,660,451.60, 3,988,344.60 and 1,595,917.20

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Solution

The fourth proportional to 2,660,451.60, 3,988,344.60 and 1,595,917.20 is: 2,392,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,451.60 : 3,988,344.60 = 1,595,917.20 : x
  2. Step 2: Convert to fraction form
    2,660,451.60/3,988,344.60 = 1,595,917.20/x
  3. Step 3: Cross multiply
    2,660,451.60x = 3,988,344.60 × 1,595,917.20
  4. Step 4: Simplify right side
    2,660,451.60x = 6,365,067,746,667.12
  5. Step 5: Solve for x
    x = 6,365,067,746,667.12/2,660,451.60
  6. Step 6: Final answer
    x = 2,392,476.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.