Home / 394,125.39-543,981.63-258,080.33

Finding the Fourth Proportional to 394,125.39, 543,981.63 and 258,080.33

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Solution

The fourth proportional to 394,125.39, 543,981.63 and 258,080.33 is: 356,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,125.39 : 543,981.63 = 258,080.33 : x
  2. Step 2: Convert to fraction form
    394,125.39/543,981.63 = 258,080.33/x
  3. Step 3: Cross multiply
    394,125.39x = 543,981.63 × 258,080.33
  4. Step 4: Simplify right side
    394,125.39x = 140,390,955,864.43
  5. Step 5: Solve for x
    x = 140,390,955,864.43/394,125.39
  6. Step 6: Final answer
    x = 356,208.86

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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.