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Finding the Fourth Proportional to 411,866.37, 568,277.78 and 239,680.11

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Solution

The fourth proportional to 411,866.37, 568,277.78 and 239,680.11 is: 330,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,866.37 : 568,277.78 = 239,680.11 : x
  2. Step 2: Convert to fraction form
    411,866.37/568,277.78 = 239,680.11/x
  3. Step 3: Cross multiply
    411,866.37x = 568,277.78 × 239,680.11
  4. Step 4: Simplify right side
    411,866.37x = 136,204,881,753.60
  5. Step 5: Solve for x
    x = 136,204,881,753.60/411,866.37
  6. Step 6: Final answer
    x = 330,701.63

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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.