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Finding the Fourth Proportional to 324,846.40, 486,751.20 and 271,969.60

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Solution

The fourth proportional to 324,846.40, 486,751.20 and 271,969.60 is: 407,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,846.40 : 486,751.20 = 271,969.60 : x
  2. Step 2: Convert to fraction form
    324,846.40/486,751.20 = 271,969.60/x
  3. Step 3: Cross multiply
    324,846.40x = 486,751.20 × 271,969.60
  4. Step 4: Simplify right side
    324,846.40x = 132,381,529,163.52
  5. Step 5: Solve for x
    x = 132,381,529,163.52/324,846.40
  6. Step 6: Final answer
    x = 407,520.38

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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.