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Finding the Fourth Proportional to 398,797.09, 550,326.56 and 237,568.61

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Solution

The fourth proportional to 398,797.09, 550,326.56 and 237,568.61 is: 327,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,797.09 : 550,326.56 = 237,568.61 : x
  2. Step 2: Convert to fraction form
    398,797.09/550,326.56 = 237,568.61/x
  3. Step 3: Cross multiply
    398,797.09x = 550,326.56 × 237,568.61
  4. Step 4: Simplify right side
    398,797.09x = 130,740,316,093.26
  5. Step 5: Solve for x
    x = 130,740,316,093.26/398,797.09
  6. Step 6: Final answer
    x = 327,836.69

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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.