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Finding the Fourth Proportional to 467,813.55, 645,591.11 and 274,360.79

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Solution

The fourth proportional to 467,813.55, 645,591.11 and 274,360.79 is: 378,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,813.55 : 645,591.11 = 274,360.79 : x
  2. Step 2: Convert to fraction form
    467,813.55/645,591.11 = 274,360.79/x
  3. Step 3: Cross multiply
    467,813.55x = 645,591.11 × 274,360.79
  4. Step 4: Simplify right side
    467,813.55x = 177,124,882,356.82
  5. Step 5: Solve for x
    x = 177,124,882,356.82/467,813.55
  6. Step 6: Final answer
    x = 378,622.81

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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.