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Finding the Fourth Proportional to 3,956,376.88, 5,934,387.01 and 1,649,920.20

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Solution

The fourth proportional to 3,956,376.88, 5,934,387.01 and 1,649,920.20 is: 2,474,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956,376.88 : 5,934,387.01 = 1,649,920.20 : x
  2. Step 2: Convert to fraction form
    3,956,376.88/5,934,387.01 = 1,649,920.20/x
  3. Step 3: Cross multiply
    3,956,376.88x = 5,934,387.01 × 1,649,920.20
  4. Step 4: Simplify right side
    3,956,376.88x = 9,791,265,002,416.60
  5. Step 5: Solve for x
    x = 9,791,265,002,416.60/3,956,376.88
  6. Step 6: Final answer
    x = 2,474,805.94

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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.