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Finding the Fourth Proportional to 426,039.80, 587,936.84 and 235,058.81

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Solution

The fourth proportional to 426,039.80, 587,936.84 and 235,058.81 is: 324,382.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,039.80 : 587,936.84 = 235,058.81 : x
  2. Step 2: Convert to fraction form
    426,039.80/587,936.84 = 235,058.81/x
  3. Step 3: Cross multiply
    426,039.80x = 587,936.84 × 235,058.81
  4. Step 4: Simplify right side
    426,039.80x = 138,199,729,850.58
  5. Step 5: Solve for x
    x = 138,199,729,850.58/426,039.80
  6. Step 6: Final answer
    x = 324,382.21

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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.