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Finding the Fourth Proportional to 636,408.06, 954,611.69 and 187,132.62

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Solution

The fourth proportional to 636,408.06, 954,611.69 and 187,132.62 is: 280,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,408.06 : 954,611.69 = 187,132.62 : x
  2. Step 2: Convert to fraction form
    636,408.06/954,611.69 = 187,132.62/x
  3. Step 3: Cross multiply
    636,408.06x = 954,611.69 × 187,132.62
  4. Step 4: Simplify right side
    636,408.06x = 178,638,986,632.33
  5. Step 5: Solve for x
    x = 178,638,986,632.33/636,408.06
  6. Step 6: Final answer
    x = 280,698.81

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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.