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Finding the Fourth Proportional to 3,791,481.88, 5,686,662.22 and 1,394,766.01

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Solution

The fourth proportional to 3,791,481.88, 5,686,662.22 and 1,394,766.01 is: 2,091,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791,481.88 : 5,686,662.22 = 1,394,766.01 : x
  2. Step 2: Convert to fraction form
    3,791,481.88/5,686,662.22 = 1,394,766.01/x
  3. Step 3: Cross multiply
    3,791,481.88x = 5,686,662.22 × 1,394,766.01
  4. Step 4: Simplify right side
    3,791,481.88x = 7,931,563,154,286.64
  5. Step 5: Solve for x
    x = 7,931,563,154,286.64/3,791,481.88
  6. Step 6: Final answer
    x = 2,091,942.78

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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.