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Finding the Fourth Proportional to 311,216.40, 466,824.60 and 204,928.20

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Solution

The fourth proportional to 311,216.40, 466,824.60 and 204,928.20 is: 307,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,216.40 : 466,824.60 = 204,928.20 : x
  2. Step 2: Convert to fraction form
    311,216.40/466,824.60 = 204,928.20/x
  3. Step 3: Cross multiply
    311,216.40x = 466,824.60 × 204,928.20
  4. Step 4: Simplify right side
    311,216.40x = 95,665,524,993.72
  5. Step 5: Solve for x
    x = 95,665,524,993.72/311,216.40
  6. Step 6: Final answer
    x = 307,392.30

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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.