Home / 394,936.44-592,440.66-128,628.60

Finding the Fourth Proportional to 394,936.44, 592,440.66 and 128,628.60

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Solution

The fourth proportional to 394,936.44, 592,440.66 and 128,628.60 is: 192,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,936.44 : 592,440.66 = 128,628.60 : x
  2. Step 2: Convert to fraction form
    394,936.44/592,440.66 = 128,628.60/x
  3. Step 3: Cross multiply
    394,936.44x = 592,440.66 × 128,628.60
  4. Step 4: Simplify right side
    394,936.44x = 76,204,812,678.88
  5. Step 5: Solve for x
    x = 76,204,812,678.88/394,936.44
  6. Step 6: Final answer
    x = 192,954.62

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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.