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Finding the Fourth Proportional to 679,067.33, 937,058.06 and 392,605.88

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Solution

The fourth proportional to 679,067.33, 937,058.06 and 392,605.88 is: 541,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,067.33 : 937,058.06 = 392,605.88 : x
  2. Step 2: Convert to fraction form
    679,067.33/937,058.06 = 392,605.88/x
  3. Step 3: Cross multiply
    679,067.33x = 937,058.06 × 392,605.88
  4. Step 4: Simplify right side
    679,067.33x = 367,894,500,553.62
  5. Step 5: Solve for x
    x = 367,894,500,553.62/679,067.33
  6. Step 6: Final answer
    x = 541,764.40

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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.