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Finding the Fourth Proportional to 647,747.22, 971,745.37 and 248,356.85

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Solution

The fourth proportional to 647,747.22, 971,745.37 and 248,356.85 is: 372,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,747.22 : 971,745.37 = 248,356.85 : x
  2. Step 2: Convert to fraction form
    647,747.22/971,745.37 = 248,356.85/x
  3. Step 3: Cross multiply
    647,747.22x = 971,745.37 × 248,356.85
  4. Step 4: Simplify right side
    647,747.22x = 241,339,614,236.56
  5. Step 5: Solve for x
    x = 241,339,614,236.56/647,747.22
  6. Step 6: Final answer
    x = 372,583.02

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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.