Home / 419,837.78-579,391.89-238,580.57

Finding the Fourth Proportional to 419,837.78, 579,391.89 and 238,580.57

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Solution

The fourth proportional to 419,837.78, 579,391.89 and 238,580.57 is: 329,250.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,837.78 : 579,391.89 = 238,580.57 : x
  2. Step 2: Convert to fraction form
    419,837.78/579,391.89 = 238,580.57/x
  3. Step 3: Cross multiply
    419,837.78x = 579,391.89 × 238,580.57
  4. Step 4: Simplify right side
    419,837.78x = 138,231,647,923.38
  5. Step 5: Solve for x
    x = 138,231,647,923.38/419,837.78
  6. Step 6: Final answer
    x = 329,250.14

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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.