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Finding the Fourth Proportional to 311,229.20, 466,843.80 and 153,765.20

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Solution

The fourth proportional to 311,229.20, 466,843.80 and 153,765.20 is: 230,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,229.20 : 466,843.80 = 153,765.20 : x
  2. Step 2: Convert to fraction form
    311,229.20/466,843.80 = 153,765.20/x
  3. Step 3: Cross multiply
    311,229.20x = 466,843.80 × 153,765.20
  4. Step 4: Simplify right side
    311,229.20x = 71,784,330,275.76
  5. Step 5: Solve for x
    x = 71,784,330,275.76/311,229.20
  6. Step 6: Final answer
    x = 230,647.80

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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.