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Finding the Fourth Proportional to 488,901.96, 674,650.58 and 271,121.67

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Solution

The fourth proportional to 488,901.96, 674,650.58 and 271,121.67 is: 374,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,901.96 : 674,650.58 = 271,121.67 : x
  2. Step 2: Convert to fraction form
    488,901.96/674,650.58 = 271,121.67/x
  3. Step 3: Cross multiply
    488,901.96x = 674,650.58 × 271,121.67
  4. Step 4: Simplify right side
    488,901.96x = 182,912,390,560.46
  5. Step 5: Solve for x
    x = 182,912,390,560.46/488,901.96
  6. Step 6: Final answer
    x = 374,128.98

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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.