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Finding the Fourth Proportional to 322,191.30, 483,286.95 and 276,920.40

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Solution

The fourth proportional to 322,191.30, 483,286.95 and 276,920.40 is: 415,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,191.30 : 483,286.95 = 276,920.40 : x
  2. Step 2: Convert to fraction form
    322,191.30/483,286.95 = 276,920.40/x
  3. Step 3: Cross multiply
    322,191.30x = 483,286.95 × 276,920.40
  4. Step 4: Simplify right side
    322,191.30x = 133,832,015,508.78
  5. Step 5: Solve for x
    x = 133,832,015,508.78/322,191.30
  6. Step 6: Final answer
    x = 415,380.60

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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.