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Finding the Fourth Proportional to 372,021.44, 555,505.49 and 361,932.37

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Solution

The fourth proportional to 372,021.44, 555,505.49 and 361,932.37 is: 540,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,021.44 : 555,505.49 = 361,932.37 : x
  2. Step 2: Convert to fraction form
    372,021.44/555,505.49 = 361,932.37/x
  3. Step 3: Cross multiply
    372,021.44x = 555,505.49 × 361,932.37
  4. Step 4: Simplify right side
    372,021.44x = 201,055,418,059.78
  5. Step 5: Solve for x
    x = 201,055,418,059.78/372,021.44
  6. Step 6: Final answer
    x = 540,440.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.