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Finding the Fourth Proportional to 367,074.80, 550,612.20 and 311,087.60

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Solution

The fourth proportional to 367,074.80, 550,612.20 and 311,087.60 is: 466,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,074.80 : 550,612.20 = 311,087.60 : x
  2. Step 2: Convert to fraction form
    367,074.80/550,612.20 = 311,087.60/x
  3. Step 3: Cross multiply
    367,074.80x = 550,612.20 × 311,087.60
  4. Step 4: Simplify right side
    367,074.80x = 171,288,627,828.72
  5. Step 5: Solve for x
    x = 171,288,627,828.72/367,074.80
  6. Step 6: Final answer
    x = 466,631.40

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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.