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Finding the Fourth Proportional to 383,856.97, 529,448.38 and 332,778.37

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Solution

The fourth proportional to 383,856.97, 529,448.38 and 332,778.37 is: 458,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,856.97 : 529,448.38 = 332,778.37 : x
  2. Step 2: Convert to fraction form
    383,856.97/529,448.38 = 332,778.37/x
  3. Step 3: Cross multiply
    383,856.97x = 529,448.38 × 332,778.37
  4. Step 4: Simplify right side
    383,856.97x = 176,188,968,895.54
  5. Step 5: Solve for x
    x = 176,188,968,895.54/383,856.97
  6. Step 6: Final answer
    x = 458,996.40

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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.