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Finding the Fourth Proportional to 548,805.90, 823,208.88 and 361,773.66

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Solution

The fourth proportional to 548,805.90, 823,208.88 and 361,773.66 is: 542,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,805.90 : 823,208.88 = 361,773.66 : x
  2. Step 2: Convert to fraction form
    548,805.90/823,208.88 = 361,773.66/x
  3. Step 3: Cross multiply
    548,805.90x = 823,208.88 × 361,773.66
  4. Step 4: Simplify right side
    548,805.90x = 297,815,289,462.10
  5. Step 5: Solve for x
    x = 297,815,289,462.10/548,805.90
  6. Step 6: Final answer
    x = 542,660.51

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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.