Home / 419,661.18-579,114.29-238,372.56

Finding the Fourth Proportional to 419,661.18, 579,114.29 and 238,372.56

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Solution

The fourth proportional to 419,661.18, 579,114.29 and 238,372.56 is: 328,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,661.18 : 579,114.29 = 238,372.56 : x
  2. Step 2: Convert to fraction form
    419,661.18/579,114.29 = 238,372.56/x
  3. Step 3: Cross multiply
    419,661.18x = 579,114.29 × 238,372.56
  4. Step 4: Simplify right side
    419,661.18x = 138,044,956,435.81
  5. Step 5: Solve for x
    x = 138,044,956,435.81/419,661.18
  6. Step 6: Final answer
    x = 328,943.83

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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.