Home / 382,936.43-528,523.13-221,791.43

Finding the Fourth Proportional to 382,936.43, 528,523.13 and 221,791.43

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Solution

The fourth proportional to 382,936.43, 528,523.13 and 221,791.43 is: 306,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,936.43 : 528,523.13 = 221,791.43 : x
  2. Step 2: Convert to fraction form
    382,936.43/528,523.13 = 221,791.43/x
  3. Step 3: Cross multiply
    382,936.43x = 528,523.13 × 221,791.43
  4. Step 4: Simplify right side
    382,936.43x = 117,221,902,666.56
  5. Step 5: Solve for x
    x = 117,221,902,666.56/382,936.43
  6. Step 6: Final answer
    x = 306,113.22

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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.