Home / 419,842.11-579,360.25-238,528.88

Finding the Fourth Proportional to 419,842.11, 579,360.25 and 238,528.88

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Solution

The fourth proportional to 419,842.11, 579,360.25 and 238,528.88 is: 329,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,842.11 : 579,360.25 = 238,528.88 : x
  2. Step 2: Convert to fraction form
    419,842.11/579,360.25 = 238,528.88/x
  3. Step 3: Cross multiply
    419,842.11x = 579,360.25 × 238,528.88
  4. Step 4: Simplify right side
    419,842.11x = 138,194,148,055.90
  5. Step 5: Solve for x
    x = 138,194,148,055.90/419,842.11
  6. Step 6: Final answer
    x = 329,157.43

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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.