Home / 298,979.20-447,691.20-193,225.60

Finding the Fourth Proportional to 298,979.20, 447,691.20 and 193,225.60

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Solution

The fourth proportional to 298,979.20, 447,691.20 and 193,225.60 is: 289,335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,979.20 : 447,691.20 = 193,225.60 : x
  2. Step 2: Convert to fraction form
    298,979.20/447,691.20 = 193,225.60/x
  3. Step 3: Cross multiply
    298,979.20x = 447,691.20 × 193,225.60
  4. Step 4: Simplify right side
    298,979.20x = 86,505,400,734.72
  5. Step 5: Solve for x
    x = 86,505,400,734.72/298,979.20
  6. Step 6: Final answer
    x = 289,335.85

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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.