Home / 500,614.08-690,896.97-285,786.42

Finding the Fourth Proportional to 500,614.08, 690,896.97 and 285,786.42

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Solution

The fourth proportional to 500,614.08, 690,896.97 and 285,786.42 is: 394,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,614.08 : 690,896.97 = 285,786.42 : x
  2. Step 2: Convert to fraction form
    500,614.08/690,896.97 = 285,786.42/x
  3. Step 3: Cross multiply
    500,614.08x = 690,896.97 × 285,786.42
  4. Step 4: Simplify right side
    500,614.08x = 197,448,971,645.15
  5. Step 5: Solve for x
    x = 197,448,971,645.15/500,614.08
  6. Step 6: Final answer
    x = 394,413.54

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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.