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Finding the Fourth Proportional to 441,685.78, 662,052.39 and 216,784.42

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Solution

The fourth proportional to 441,685.78, 662,052.39 and 216,784.42 is: 324,942.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,685.78 : 662,052.39 = 216,784.42 : x
  2. Step 2: Convert to fraction form
    441,685.78/662,052.39 = 216,784.42/x
  3. Step 3: Cross multiply
    441,685.78x = 662,052.39 × 216,784.42
  4. Step 4: Simplify right side
    441,685.78x = 143,522,643,375.76
  5. Step 5: Solve for x
    x = 143,522,643,375.76/441,685.78
  6. Step 6: Final answer
    x = 324,942.87

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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.