Home / 391,185.24-539,919.66-238,273.86

Finding the Fourth Proportional to 391,185.24, 539,919.66 and 238,273.86

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Solution

The fourth proportional to 391,185.24, 539,919.66 and 238,273.86 is: 328,869.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,185.24 : 539,919.66 = 238,273.86 : x
  2. Step 2: Convert to fraction form
    391,185.24/539,919.66 = 238,273.86/x
  3. Step 3: Cross multiply
    391,185.24x = 539,919.66 × 238,273.86
  4. Step 4: Simplify right side
    391,185.24x = 128,648,741,478.09
  5. Step 5: Solve for x
    x = 128,648,741,478.09/391,185.24
  6. Step 6: Final answer
    x = 328,869.11

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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.