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Finding the Fourth Proportional to 488,940.84, 674,766.74 and 274,150.04

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Solution

The fourth proportional to 488,940.84, 674,766.74 and 274,150.04 is: 378,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,940.84 : 674,766.74 = 274,150.04 : x
  2. Step 2: Convert to fraction form
    488,940.84/674,766.74 = 274,150.04/x
  3. Step 3: Cross multiply
    488,940.84x = 674,766.74 × 274,150.04
  4. Step 4: Simplify right side
    488,940.84x = 184,987,328,761.67
  5. Step 5: Solve for x
    x = 184,987,328,761.67/488,940.84
  6. Step 6: Final answer
    x = 378,342.97

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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.