Home / 394,117.12-591,313.92-204,486.40

Finding the Fourth Proportional to 394,117.12, 591,313.92 and 204,486.40

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Solution

The fourth proportional to 394,117.12, 591,313.92 and 204,486.40 is: 306,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,117.12 : 591,313.92 = 204,486.40 : x
  2. Step 2: Convert to fraction form
    394,117.12/591,313.92 = 204,486.40/x
  3. Step 3: Cross multiply
    394,117.12x = 591,313.92 × 204,486.40
  4. Step 4: Simplify right side
    394,117.12x = 120,915,654,770.69
  5. Step 5: Solve for x
    x = 120,915,654,770.69/394,117.12
  6. Step 6: Final answer
    x = 306,801.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.