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Finding the Fourth Proportional to 328,072.56, 449,787.42 and 322,093.84

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Solution

The fourth proportional to 328,072.56, 449,787.42 and 322,093.84 is: 441,590.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,072.56 : 449,787.42 = 322,093.84 : x
  2. Step 2: Convert to fraction form
    328,072.56/449,787.42 = 322,093.84/x
  3. Step 3: Cross multiply
    328,072.56x = 449,787.42 × 322,093.84
  4. Step 4: Simplify right side
    328,072.56x = 144,873,757,291.49
  5. Step 5: Solve for x
    x = 144,873,757,291.49/328,072.56
  6. Step 6: Final answer
    x = 441,590.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.