Home / 419,837.80-579,354.30-238,524.56

Finding the Fourth Proportional to 419,837.80, 579,354.30 and 238,524.56

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Solution

The fourth proportional to 419,837.80, 579,354.30 and 238,524.56 is: 329,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,837.80 : 579,354.30 = 238,524.56 : x
  2. Step 2: Convert to fraction form
    419,837.80/579,354.30 = 238,524.56/x
  3. Step 3: Cross multiply
    419,837.80x = 579,354.30 × 238,524.56
  4. Step 4: Simplify right side
    419,837.80x = 138,190,230,939.99
  5. Step 5: Solve for x
    x = 138,190,230,939.99/419,837.80
  6. Step 6: Final answer
    x = 329,151.48

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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.