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Finding the Fourth Proportional to 3,693,218.06, 5,541,777.57 and 2,620,661.22

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Solution

The fourth proportional to 3,693,218.06, 5,541,777.57 and 2,620,661.22 is: 3,932,375.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693,218.06 : 5,541,777.57 = 2,620,661.22 : x
  2. Step 2: Convert to fraction form
    3,693,218.06/5,541,777.57 = 2,620,661.22/x
  3. Step 3: Cross multiply
    3,693,218.06x = 5,541,777.57 × 2,620,661.22
  4. Step 4: Simplify right side
    3,693,218.06x = 14,523,121,567,564.84
  5. Step 5: Solve for x
    x = 14,523,121,567,564.84/3,693,218.06
  6. Step 6: Final answer
    x = 3,932,375.87

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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.