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Finding the Fourth Proportional to 394,653.01, 592,128.65 and 236,991.37

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Solution

The fourth proportional to 394,653.01, 592,128.65 and 236,991.37 is: 355,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,653.01 : 592,128.65 = 236,991.37 : x
  2. Step 2: Convert to fraction form
    394,653.01/592,128.65 = 236,991.37/x
  3. Step 3: Cross multiply
    394,653.01x = 592,128.65 × 236,991.37
  4. Step 4: Simplify right side
    394,653.01x = 140,329,379,979.75
  5. Step 5: Solve for x
    x = 140,329,379,979.75/394,653.01
  6. Step 6: Final answer
    x = 355,576.61

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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.