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Finding the Fourth Proportional to 394,530.30, 590,856.06 and 251,933.88

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Solution

The fourth proportional to 394,530.30, 590,856.06 and 251,933.88 is: 377,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,530.30 : 590,856.06 = 251,933.88 : x
  2. Step 2: Convert to fraction form
    394,530.30/590,856.06 = 251,933.88/x
  3. Step 3: Cross multiply
    394,530.30x = 590,856.06 × 251,933.88
  4. Step 4: Simplify right side
    394,530.30x = 148,856,659,717.31
  5. Step 5: Solve for x
    x = 148,856,659,717.31/394,530.30
  6. Step 6: Final answer
    x = 377,300.96

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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.