Home / 419,867.58-579,396.32-238,555.56

Finding the Fourth Proportional to 419,867.58, 579,396.32 and 238,555.56

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Solution

The fourth proportional to 419,867.58, 579,396.32 and 238,555.56 is: 329,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,867.58 : 579,396.32 = 238,555.56 : x
  2. Step 2: Convert to fraction form
    419,867.58/579,396.32 = 238,555.56/x
  3. Step 3: Cross multiply
    419,867.58x = 579,396.32 × 238,555.56
  4. Step 4: Simplify right side
    419,867.58x = 138,218,213,579.54
  5. Step 5: Solve for x
    x = 138,218,213,579.54/419,867.58
  6. Step 6: Final answer
    x = 329,194.78

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1.5x scale

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.