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Finding the Fourth Proportional to 488,922.57, 674,754.76 and 274,104.16

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Solution

The fourth proportional to 488,922.57, 674,754.76 and 274,104.16 is: 378,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,922.57 : 674,754.76 = 274,104.16 : x
  2. Step 2: Convert to fraction form
    488,922.57/674,754.76 = 274,104.16/x
  3. Step 3: Cross multiply
    488,922.57x = 674,754.76 × 274,104.16
  4. Step 4: Simplify right side
    488,922.57x = 184,953,086,695.80
  5. Step 5: Solve for x
    x = 184,953,086,695.80/488,922.57
  6. Step 6: Final answer
    x = 378,287.07

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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.