Home / 500,374.97-690,517.91-285,584.23

Finding the Fourth Proportional to 500,374.97, 690,517.91 and 285,584.23

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Solution

The fourth proportional to 500,374.97, 690,517.91 and 285,584.23 is: 394,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,374.97 : 690,517.91 = 285,584.23 : x
  2. Step 2: Convert to fraction form
    500,374.97/690,517.91 = 285,584.23/x
  3. Step 3: Cross multiply
    500,374.97x = 690,517.91 × 285,584.23
  4. Step 4: Simplify right side
    500,374.97x = 197,201,027,205.67
  5. Step 5: Solve for x
    x = 197,201,027,205.67/500,374.97
  6. Step 6: Final answer
    x = 394,106.50

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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.