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Finding the Fourth Proportional to 6,479,745.52, 8,943,197.16 and 3,726,220.72

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Solution

The fourth proportional to 6,479,745.52, 8,943,197.16 and 3,726,220.72 is: 5,142,844.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479,745.52 : 8,943,197.16 = 3,726,220.72 : x
  2. Step 2: Convert to fraction form
    6,479,745.52/8,943,197.16 = 3,726,220.72/x
  3. Step 3: Cross multiply
    6,479,745.52x = 8,943,197.16 × 3,726,220.72
  4. Step 4: Simplify right side
    6,479,745.52x = 33,324,326,560,637.16
  5. Step 5: Solve for x
    x = 33,324,326,560,637.16/6,479,745.52
  6. Step 6: Final answer
    x = 5,142,844.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.