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Finding the Fourth Proportional to 401,046.75, 553,444.52 and 239,908.59

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Solution

The fourth proportional to 401,046.75, 553,444.52 and 239,908.59 is: 331,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,046.75 : 553,444.52 = 239,908.59 : x
  2. Step 2: Convert to fraction form
    401,046.75/553,444.52 = 239,908.59/x
  3. Step 3: Cross multiply
    401,046.75x = 553,444.52 × 239,908.59
  4. Step 4: Simplify right side
    401,046.75x = 132,776,093,236.88
  5. Step 5: Solve for x
    x = 132,776,093,236.88/401,046.75
  6. Step 6: Final answer
    x = 331,073.85

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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.