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Finding the Fourth Proportional to 574,786.44, 793,229.63 and 320,137.61

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Solution

The fourth proportional to 574,786.44, 793,229.63 and 320,137.61 is: 441,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,786.44 : 793,229.63 = 320,137.61 : x
  2. Step 2: Convert to fraction form
    574,786.44/793,229.63 = 320,137.61/x
  3. Step 3: Cross multiply
    574,786.44x = 793,229.63 × 320,137.61
  4. Step 4: Simplify right side
    574,786.44x = 253,942,632,362.55
  5. Step 5: Solve for x
    x = 253,942,632,362.55/574,786.44
  6. Step 6: Final answer
    x = 441,803.45

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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.