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Finding the Fourth Proportional to 401,091.44, 601,232.30 and 251,436.84

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Solution

The fourth proportional to 401,091.44, 601,232.30 and 251,436.84 is: 376,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,091.44 : 601,232.30 = 251,436.84 : x
  2. Step 2: Convert to fraction form
    401,091.44/601,232.30 = 251,436.84/x
  3. Step 3: Cross multiply
    401,091.44x = 601,232.30 × 251,436.84
  4. Step 4: Simplify right side
    401,091.44x = 151,171,948,360.75
  5. Step 5: Solve for x
    x = 151,171,948,360.75/401,091.44
  6. Step 6: Final answer
    x = 376,901.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.