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Finding the Fourth Proportional to 382,093.70, 573,140.55 and 329,605.70

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Solution

The fourth proportional to 382,093.70, 573,140.55 and 329,605.70 is: 494,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,093.70 : 573,140.55 = 329,605.70 : x
  2. Step 2: Convert to fraction form
    382,093.70/573,140.55 = 329,605.70/x
  3. Step 3: Cross multiply
    382,093.70x = 573,140.55 × 329,605.70
  4. Step 4: Simplify right side
    382,093.70x = 188,910,392,181.14
  5. Step 5: Solve for x
    x = 188,910,392,181.14/382,093.70
  6. Step 6: Final answer
    x = 494,408.55

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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.