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Finding the Fourth Proportional to 488,840.40, 733,260.60 and 329,408.10

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Solution

The fourth proportional to 488,840.40, 733,260.60 and 329,408.10 is: 494,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,840.40 : 733,260.60 = 329,408.10 : x
  2. Step 2: Convert to fraction form
    488,840.40/733,260.60 = 329,408.10/x
  3. Step 3: Cross multiply
    488,840.40x = 733,260.60 × 329,408.10
  4. Step 4: Simplify right side
    488,840.40x = 241,541,981,050.86
  5. Step 5: Solve for x
    x = 241,541,981,050.86/488,840.40
  6. Step 6: Final answer
    x = 494,112.15

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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.