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Finding the Fourth Proportional to 311,926.80, 467,452.80 and 274,310.40

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Solution

The fourth proportional to 311,926.80, 467,452.80 and 274,310.40 is: 411,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,926.80 : 467,452.80 = 274,310.40 : x
  2. Step 2: Convert to fraction form
    311,926.80/467,452.80 = 274,310.40/x
  3. Step 3: Cross multiply
    311,926.80x = 467,452.80 × 274,310.40
  4. Step 4: Simplify right side
    311,926.80x = 128,227,164,549.12
  5. Step 5: Solve for x
    x = 128,227,164,549.12/311,926.80
  6. Step 6: Final answer
    x = 411,080.95

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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.