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Finding the Fourth Proportional to 311,251.20, 466,339.20 and 144,697.60

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Solution

The fourth proportional to 311,251.20, 466,339.20 and 144,697.60 is: 216,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,251.20 : 466,339.20 = 144,697.60 : x
  2. Step 2: Convert to fraction form
    311,251.20/466,339.20 = 144,697.60/x
  3. Step 3: Cross multiply
    311,251.20x = 466,339.20 × 144,697.60
  4. Step 4: Simplify right side
    311,251.20x = 67,478,163,025.92
  5. Step 5: Solve for x
    x = 67,478,163,025.92/311,251.20
  6. Step 6: Final answer
    x = 216,796.48

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1.5x scale

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.