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Finding the Fourth Proportional to 218,440.20, 327,660.30 and 186,947.40

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Solution

The fourth proportional to 218,440.20, 327,660.30 and 186,947.40 is: 280,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,440.20 : 327,660.30 = 186,947.40 : x
  2. Step 2: Convert to fraction form
    218,440.20/327,660.30 = 186,947.40/x
  3. Step 3: Cross multiply
    218,440.20x = 327,660.30 × 186,947.40
  4. Step 4: Simplify right side
    218,440.20x = 61,255,241,168.22
  5. Step 5: Solve for x
    x = 61,255,241,168.22/218,440.20
  6. Step 6: Final answer
    x = 280,421.10

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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.