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Finding the Fourth Proportional to 503,685.11, 695,062.22 and 274,241.70

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Solution

The fourth proportional to 503,685.11, 695,062.22 and 274,241.70 is: 378,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,685.11 : 695,062.22 = 274,241.70 : x
  2. Step 2: Convert to fraction form
    503,685.11/695,062.22 = 274,241.70/x
  3. Step 3: Cross multiply
    503,685.11x = 695,062.22 × 274,241.70
  4. Step 4: Simplify right side
    503,685.11x = 190,615,043,447.37
  5. Step 5: Solve for x
    x = 190,615,043,447.37/503,685.11
  6. Step 6: Final answer
    x = 378,440.89

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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.