Home / 393,529.11-543,067.63-223,763.22

Finding the Fourth Proportional to 393,529.11, 543,067.63 and 223,763.22

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Solution

The fourth proportional to 393,529.11, 543,067.63 and 223,763.22 is: 308,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,529.11 : 543,067.63 = 223,763.22 : x
  2. Step 2: Convert to fraction form
    393,529.11/543,067.63 = 223,763.22/x
  3. Step 3: Cross multiply
    393,529.11x = 543,067.63 × 223,763.22
  4. Step 4: Simplify right side
    393,529.11x = 121,518,561,566.57
  5. Step 5: Solve for x
    x = 121,518,561,566.57/393,529.11
  6. Step 6: Final answer
    x = 308,791.80

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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.