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Finding the Fourth Proportional to 411,058.71, 567,333.21 and 239,029.91

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Solution

The fourth proportional to 411,058.71, 567,333.21 and 239,029.91 is: 329,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,058.71 : 567,333.21 = 239,029.91 : x
  2. Step 2: Convert to fraction form
    411,058.71/567,333.21 = 239,029.91/x
  3. Step 3: Cross multiply
    411,058.71x = 567,333.21 × 239,029.91
  4. Step 4: Simplify right side
    411,058.71x = 135,609,603,289.65
  5. Step 5: Solve for x
    x = 135,609,603,289.65/411,058.71
  6. Step 6: Final answer
    x = 329,903.25

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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.