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Finding the Fourth Proportional to 394,529.79, 590,855.31 and 251,933.38

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Solution

The fourth proportional to 394,529.79, 590,855.31 and 251,933.38 is: 377,300.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,529.79 : 590,855.31 = 251,933.38 : x
  2. Step 2: Convert to fraction form
    394,529.79/590,855.31 = 251,933.38/x
  3. Step 3: Cross multiply
    394,529.79x = 590,855.31 × 251,933.38
  4. Step 4: Simplify right side
    394,529.79x = 148,856,175,339.25
  5. Step 5: Solve for x
    x = 148,856,175,339.25/394,529.79
  6. Step 6: Final answer
    x = 377,300.22

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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.