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Finding the Fourth Proportional to 279,990.60, 419,985.90 and 244,998.60

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Solution

The fourth proportional to 279,990.60, 419,985.90 and 244,998.60 is: 367,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,990.60 : 419,985.90 = 244,998.60 : x
  2. Step 2: Convert to fraction form
    279,990.60/419,985.90 = 244,998.60/x
  3. Step 3: Cross multiply
    279,990.60x = 419,985.90 × 244,998.60
  4. Step 4: Simplify right side
    279,990.60x = 102,895,957,519.74
  5. Step 5: Solve for x
    x = 102,895,957,519.74/279,990.60
  6. Step 6: Final answer
    x = 367,497.90

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Similar ratio
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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.