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Finding the Fourth Proportional to 481,191.76, 721,576.86 and 228,544.48

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Solution

The fourth proportional to 481,191.76, 721,576.86 and 228,544.48 is: 342,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,191.76 : 721,576.86 = 228,544.48 : x
  2. Step 2: Convert to fraction form
    481,191.76/721,576.86 = 228,544.48/x
  3. Step 3: Cross multiply
    481,191.76x = 721,576.86 × 228,544.48
  4. Step 4: Simplify right side
    481,191.76x = 164,912,408,248.73
  5. Step 5: Solve for x
    x = 164,912,408,248.73/481,191.76
  6. Step 6: Final answer
    x = 342,716.61

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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.