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Finding the Fourth Proportional to 383,859.22, 529,451.48 and 332,780.62

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Solution

The fourth proportional to 383,859.22, 529,451.48 and 332,780.62 is: 458,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,859.22 : 529,451.48 = 332,780.62 : x
  2. Step 2: Convert to fraction form
    383,859.22/529,451.48 = 332,780.62/x
  3. Step 3: Cross multiply
    383,859.22x = 529,451.48 × 332,780.62
  4. Step 4: Simplify right side
    383,859.22x = 176,191,191,774.32
  5. Step 5: Solve for x
    x = 176,191,191,774.32/383,859.22
  6. Step 6: Final answer
    x = 458,999.50

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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.