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Finding the Fourth Proportional to 401,171.11, 601,018.54 and 251,383.48

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Solution

The fourth proportional to 401,171.11, 601,018.54 and 251,383.48 is: 376,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,171.11 : 601,018.54 = 251,383.48 : x
  2. Step 2: Convert to fraction form
    401,171.11/601,018.54 = 251,383.48/x
  3. Step 3: Cross multiply
    401,171.11x = 601,018.54 × 251,383.48
  4. Step 4: Simplify right side
    401,171.11x = 151,086,132,129.72
  5. Step 5: Solve for x
    x = 151,086,132,129.72/401,171.11
  6. Step 6: Final answer
    x = 376,612.69

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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.