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Finding the Fourth Proportional to 3,327,776.69, 4,978,531.38 and 2,520,486.64

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Solution

The fourth proportional to 3,327,776.69, 4,978,531.38 and 2,520,486.64 is: 3,770,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327,776.69 : 4,978,531.38 = 2,520,486.64 : x
  2. Step 2: Convert to fraction form
    3,327,776.69/4,978,531.38 = 2,520,486.64/x
  3. Step 3: Cross multiply
    3,327,776.69x = 4,978,531.38 × 2,520,486.64
  4. Step 4: Simplify right side
    3,327,776.69x = 12,548,321,845,785.75
  5. Step 5: Solve for x
    x = 12,548,321,845,785.75/3,327,776.69
  6. Step 6: Final answer
    x = 3,770,782.43

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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.