Home / 479,331.11-661,716.63-298,101.42

Finding the Fourth Proportional to 479,331.11, 661,716.63 and 298,101.42

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Solution

The fourth proportional to 479,331.11, 661,716.63 and 298,101.42 is: 411,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,331.11 : 661,716.63 = 298,101.42 : x
  2. Step 2: Convert to fraction form
    479,331.11/661,716.63 = 298,101.42/x
  3. Step 3: Cross multiply
    479,331.11x = 661,716.63 × 298,101.42
  4. Step 4: Simplify right side
    479,331.11x = 197,258,667,040.62
  5. Step 5: Solve for x
    x = 197,258,667,040.62/479,331.11
  6. Step 6: Final answer
    x = 411,529.03

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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.