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Finding the Fourth Proportional to 488,633.81, 674,342.21 and 273,843.07

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Solution

The fourth proportional to 488,633.81, 674,342.21 and 273,843.07 is: 377,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,633.81 : 674,342.21 = 273,843.07 : x
  2. Step 2: Convert to fraction form
    488,633.81/674,342.21 = 273,843.07/x
  3. Step 3: Cross multiply
    488,633.81x = 674,342.21 × 273,843.07
  4. Step 4: Simplify right side
    488,633.81x = 184,663,940,015.74
  5. Step 5: Solve for x
    x = 184,663,940,015.74/488,633.81
  6. Step 6: Final answer
    x = 377,918.88

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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.