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Finding the Fourth Proportional to 327,116.40, 490,674.60 and 274,628.40

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Solution

The fourth proportional to 327,116.40, 490,674.60 and 274,628.40 is: 411,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,116.40 : 490,674.60 = 274,628.40 : x
  2. Step 2: Convert to fraction form
    327,116.40/490,674.60 = 274,628.40/x
  3. Step 3: Cross multiply
    327,116.40x = 490,674.60 × 274,628.40
  4. Step 4: Simplify right side
    327,116.40x = 134,753,180,318.64
  5. Step 5: Solve for x
    x = 134,753,180,318.64/327,116.40
  6. Step 6: Final answer
    x = 411,942.60

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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.