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Finding the Fourth Proportional to 488,754.41, 674,447.11 and 270,961.40

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Solution

The fourth proportional to 488,754.41, 674,447.11 and 270,961.40 is: 373,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,754.41 : 674,447.11 = 270,961.40 : x
  2. Step 2: Convert to fraction form
    488,754.41/674,447.11 = 270,961.40/x
  3. Step 3: Cross multiply
    488,754.41x = 674,447.11 × 270,961.40
  4. Step 4: Simplify right side
    488,754.41x = 182,749,134,160.27
  5. Step 5: Solve for x
    x = 182,749,134,160.27/488,754.41
  6. Step 6: Final answer
    x = 373,907.90

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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.