Home / 327,811.60-491,717.40-103,200.40

Finding the Fourth Proportional to 327,811.60, 491,717.40 and 103,200.40

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Solution

The fourth proportional to 327,811.60, 491,717.40 and 103,200.40 is: 154,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,811.60 : 491,717.40 = 103,200.40 : x
  2. Step 2: Convert to fraction form
    327,811.60/491,717.40 = 103,200.40/x
  3. Step 3: Cross multiply
    327,811.60x = 491,717.40 × 103,200.40
  4. Step 4: Simplify right side
    327,811.60x = 50,745,432,366.96
  5. Step 5: Solve for x
    x = 50,745,432,366.96/327,811.60
  6. Step 6: Final answer
    x = 154,800.60

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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.