Home / 419,976.09-579,552.57-238,684.86

Finding the Fourth Proportional to 419,976.09, 579,552.57 and 238,684.86

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Solution

The fourth proportional to 419,976.09, 579,552.57 and 238,684.86 is: 329,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,976.09 : 579,552.57 = 238,684.86 : x
  2. Step 2: Convert to fraction form
    419,976.09/579,552.57 = 238,684.86/x
  3. Step 3: Cross multiply
    419,976.09x = 579,552.57 × 238,684.86
  4. Step 4: Simplify right side
    419,976.09x = 138,330,424,033.09
  5. Step 5: Solve for x
    x = 138,330,424,033.09/419,976.09
  6. Step 6: Final answer
    x = 329,376.90

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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.