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Finding the Fourth Proportional to 503,380.71, 694,656.41 and 273,930.21

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Solution

The fourth proportional to 503,380.71, 694,656.41 and 273,930.21 is: 378,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,380.71 : 694,656.41 = 273,930.21 : x
  2. Step 2: Convert to fraction form
    503,380.71/694,656.41 = 273,930.21/x
  3. Step 3: Cross multiply
    503,380.71x = 694,656.41 × 273,930.21
  4. Step 4: Simplify right side
    503,380.71x = 190,287,374,899.50
  5. Step 5: Solve for x
    x = 190,287,374,899.50/503,380.71
  6. Step 6: Final answer
    x = 378,018.81

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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.