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Finding the Fourth Proportional to 379,843.94, 524,346.05 and 236,674.73

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Solution

The fourth proportional to 379,843.94, 524,346.05 and 236,674.73 is: 326,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,843.94 : 524,346.05 = 236,674.73 : x
  2. Step 2: Convert to fraction form
    379,843.94/524,346.05 = 236,674.73/x
  3. Step 3: Cross multiply
    379,843.94x = 524,346.05 × 236,674.73
  4. Step 4: Simplify right side
    379,843.94x = 124,099,456,005.21
  5. Step 5: Solve for x
    x = 124,099,456,005.21/379,843.94
  6. Step 6: Final answer
    x = 326,711.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.