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Finding the Fourth Proportional to 366,451.20, 505,723.43 and 205,358.15

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Solution

The fourth proportional to 366,451.20, 505,723.43 and 205,358.15 is: 283,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,451.20 : 505,723.43 = 205,358.15 : x
  2. Step 2: Convert to fraction form
    366,451.20/505,723.43 = 205,358.15/x
  3. Step 3: Cross multiply
    366,451.20x = 505,723.43 × 205,358.15
  4. Step 4: Simplify right side
    366,451.20x = 103,854,424,441.05
  5. Step 5: Solve for x
    x = 103,854,424,441.05/366,451.20
  6. Step 6: Final answer
    x = 283,405.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.