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Finding the Fourth Proportional to 3,791,327.91, 5,686,991.87 and 1,266,983.16

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Solution

The fourth proportional to 3,791,327.91, 5,686,991.87 and 1,266,983.16 is: 1,900,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791,327.91 : 5,686,991.87 = 1,266,983.16 : x
  2. Step 2: Convert to fraction form
    3,791,327.91/5,686,991.87 = 1,266,983.16/x
  3. Step 3: Cross multiply
    3,791,327.91x = 5,686,991.87 × 1,266,983.16
  4. Step 4: Simplify right side
    3,791,327.91x = 7,205,322,924,011.99
  5. Step 5: Solve for x
    x = 7,205,322,924,011.99/3,791,327.91
  6. Step 6: Final answer
    x = 1,900,474.74

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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.