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Finding the Fourth Proportional to 488,734.29, 674,471.52 and 273,866.40

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Solution

The fourth proportional to 488,734.29, 674,471.52 and 273,866.40 is: 377,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,734.29 : 674,471.52 = 273,866.40 : x
  2. Step 2: Convert to fraction form
    488,734.29/674,471.52 = 273,866.40/x
  3. Step 3: Cross multiply
    488,734.29x = 674,471.52 × 273,866.40
  4. Step 4: Simplify right side
    488,734.29x = 184,715,087,084.93
  5. Step 5: Solve for x
    x = 184,715,087,084.93/488,734.29
  6. Step 6: Final answer
    x = 377,945.83

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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.