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Finding the Fourth Proportional to 327,318.80, 490,103.40 and 327,318.80

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Solution

The fourth proportional to 327,318.80, 490,103.40 and 327,318.80 is: 490,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,318.80 : 490,103.40 = 327,318.80 : x
  2. Step 2: Convert to fraction form
    327,318.80/490,103.40 = 327,318.80/x
  3. Step 3: Cross multiply
    327,318.80x = 490,103.40 × 327,318.80
  4. Step 4: Simplify right side
    327,318.80x = 160,420,056,763.92
  5. Step 5: Solve for x
    x = 160,420,056,763.92/327,318.80
  6. Step 6: Final answer
    x = 490,103.40

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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.