Home / 419,743.71-579,266.85-236,040.09

Finding the Fourth Proportional to 419,743.71, 579,266.85 and 236,040.09

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Solution

The fourth proportional to 419,743.71, 579,266.85 and 236,040.09 is: 325,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,743.71 : 579,266.85 = 236,040.09 : x
  2. Step 2: Convert to fraction form
    419,743.71/579,266.85 = 236,040.09/x
  3. Step 3: Cross multiply
    419,743.71x = 579,266.85 × 236,040.09
  4. Step 4: Simplify right side
    419,743.71x = 136,730,199,408.02
  5. Step 5: Solve for x
    x = 136,730,199,408.02/419,743.71
  6. Step 6: Final answer
    x = 325,746.87

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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.