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Finding the Fourth Proportional to 398,975.22, 550,596.69 and 237,843.54

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Solution

The fourth proportional to 398,975.22, 550,596.69 and 237,843.54 is: 328,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,975.22 : 550,596.69 = 237,843.54 : x
  2. Step 2: Convert to fraction form
    398,975.22/550,596.69 = 237,843.54/x
  3. Step 3: Cross multiply
    398,975.22x = 550,596.69 × 237,843.54
  4. Step 4: Simplify right side
    398,975.22x = 130,955,865,861.88
  5. Step 5: Solve for x
    x = 130,955,865,861.88/398,975.22
  6. Step 6: Final answer
    x = 328,230.57

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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.