Home / 386,960.43-533,976.10-217,161.75

Finding the Fourth Proportional to 386,960.43, 533,976.10 and 217,161.75

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Solution

The fourth proportional to 386,960.43, 533,976.10 and 217,161.75 is: 299,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,960.43 : 533,976.10 = 217,161.75 : x
  2. Step 2: Convert to fraction form
    386,960.43/533,976.10 = 217,161.75/x
  3. Step 3: Cross multiply
    386,960.43x = 533,976.10 × 217,161.75
  4. Step 4: Simplify right side
    386,960.43x = 115,959,183,791.27
  5. Step 5: Solve for x
    x = 115,959,183,791.27/386,960.43
  6. Step 6: Final answer
    x = 299,666.77

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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.