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Finding the Fourth Proportional to 488,894.40, 674,662.23 and 271,101.87

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Solution

The fourth proportional to 488,894.40, 674,662.23 and 271,101.87 is: 374,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,894.40 : 674,662.23 = 271,101.87 : x
  2. Step 2: Convert to fraction form
    488,894.40/674,662.23 = 271,101.87/x
  3. Step 3: Cross multiply
    488,894.40x = 674,662.23 × 271,101.87
  4. Step 4: Simplify right side
    488,894.40x = 182,902,192,171.37
  5. Step 5: Solve for x
    x = 182,902,192,171.37/488,894.40
  6. Step 6: Final answer
    x = 374,113.90

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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.