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Finding the Fourth Proportional to 273,231.20, 409,846.80 and 197,998.40

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Solution

The fourth proportional to 273,231.20, 409,846.80 and 197,998.40 is: 296,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,231.20 : 409,846.80 = 197,998.40 : x
  2. Step 2: Convert to fraction form
    273,231.20/409,846.80 = 197,998.40/x
  3. Step 3: Cross multiply
    273,231.20x = 409,846.80 × 197,998.40
  4. Step 4: Simplify right side
    273,231.20x = 81,149,010,645.12
  5. Step 5: Solve for x
    x = 81,149,010,645.12/273,231.20
  6. Step 6: Final answer
    x = 296,997.60

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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.