Home / 403,917.39-557,408.66-231,789.42

Finding the Fourth Proportional to 403,917.39, 557,408.66 and 231,789.42

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Solution

The fourth proportional to 403,917.39, 557,408.66 and 231,789.42 is: 319,870.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,917.39 : 557,408.66 = 231,789.42 : x
  2. Step 2: Convert to fraction form
    403,917.39/557,408.66 = 231,789.42/x
  3. Step 3: Cross multiply
    403,917.39x = 557,408.66 × 231,789.42
  4. Step 4: Simplify right side
    403,917.39x = 129,201,428,845.43
  5. Step 5: Solve for x
    x = 129,201,428,845.43/403,917.39
  6. Step 6: Final answer
    x = 319,870.92

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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.