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Finding the Fourth Proportional to 311,229.40, 466,844.10 and 153,765.40

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Solution

The fourth proportional to 311,229.40, 466,844.10 and 153,765.40 is: 230,648.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,229.40 : 466,844.10 = 153,765.40 : x
  2. Step 2: Convert to fraction form
    311,229.40/466,844.10 = 153,765.40/x
  3. Step 3: Cross multiply
    311,229.40x = 466,844.10 × 153,765.40
  4. Step 4: Simplify right side
    311,229.40x = 71,784,469,774.14
  5. Step 5: Solve for x
    x = 71,784,469,774.14/311,229.40
  6. Step 6: Final answer
    x = 230,648.10

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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.