Home / 394,976.02-592,350.90-128,759.80

Finding the Fourth Proportional to 394,976.02, 592,350.90 and 128,759.80

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Solution

The fourth proportional to 394,976.02, 592,350.90 and 128,759.80 is: 193,102.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,976.02 : 592,350.90 = 128,759.80 : x
  2. Step 2: Convert to fraction form
    394,976.02/592,350.90 = 128,759.80/x
  3. Step 3: Cross multiply
    394,976.02x = 592,350.90 × 128,759.80
  4. Step 4: Simplify right side
    394,976.02x = 76,270,983,413.82
  5. Step 5: Solve for x
    x = 76,270,983,413.82/394,976.02
  6. Step 6: Final answer
    x = 193,102.82

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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.