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Finding the Fourth Proportional to 622,782.80, 932,791.80 and 248,613.20

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Solution

The fourth proportional to 622,782.80, 932,791.80 and 248,613.20 is: 372,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,782.80 : 932,791.80 = 248,613.20 : x
  2. Step 2: Convert to fraction form
    622,782.80/932,791.80 = 248,613.20/x
  3. Step 3: Cross multiply
    622,782.80x = 932,791.80 × 248,613.20
  4. Step 4: Simplify right side
    622,782.80x = 231,904,354,331.76
  5. Step 5: Solve for x
    x = 231,904,354,331.76/622,782.80
  6. Step 6: Final answer
    x = 372,367.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.