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Finding the Fourth Proportional to 6,437,704.40, 9,656,556.60 and 3,400,917.20

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Solution

The fourth proportional to 6,437,704.40, 9,656,556.60 and 3,400,917.20 is: 5,101,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437,704.40 : 9,656,556.60 = 3,400,917.20 : x
  2. Step 2: Convert to fraction form
    6,437,704.40/9,656,556.60 = 3,400,917.20/x
  3. Step 3: Cross multiply
    6,437,704.40x = 9,656,556.60 × 3,400,917.20
  4. Step 4: Simplify right side
    6,437,704.40x = 32,841,149,433,713.52
  5. Step 5: Solve for x
    x = 32,841,149,433,713.52/6,437,704.40
  6. Step 6: Final answer
    x = 5,101,375.80

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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.