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Finding the Fourth Proportional to 366,451.72, 505,694.58 and 205,311.88

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Solution

The fourth proportional to 366,451.72, 505,694.58 and 205,311.88 is: 283,325.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,451.72 : 505,694.58 = 205,311.88 : x
  2. Step 2: Convert to fraction form
    366,451.72/505,694.58 = 205,311.88/x
  3. Step 3: Cross multiply
    366,451.72x = 505,694.58 × 205,311.88
  4. Step 4: Simplify right side
    366,451.72x = 103,825,104,925.61
  5. Step 5: Solve for x
    x = 103,825,104,925.61/366,451.72
  6. Step 6: Final answer
    x = 283,325.47

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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.