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Finding the Fourth Proportional to 401,090.94, 601,231.54 and 251,436.35

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Solution

The fourth proportional to 401,090.94, 601,231.54 and 251,436.35 is: 376,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,090.94 : 601,231.54 = 251,436.35 : x
  2. Step 2: Convert to fraction form
    401,090.94/601,231.54 = 251,436.35/x
  3. Step 3: Cross multiply
    401,090.94x = 601,231.54 × 251,436.35
  4. Step 4: Simplify right side
    401,090.94x = 151,171,463,922.48
  5. Step 5: Solve for x
    x = 151,171,463,922.48/401,090.94
  6. Step 6: Final answer
    x = 376,900.72

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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.