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Finding the Fourth Proportional to 353,713.80, 529,404.30 and 248,737.80

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Solution

The fourth proportional to 353,713.80, 529,404.30 and 248,737.80 is: 372,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,713.80 : 529,404.30 = 248,737.80 : x
  2. Step 2: Convert to fraction form
    353,713.80/529,404.30 = 248,737.80/x
  3. Step 3: Cross multiply
    353,713.80x = 529,404.30 × 248,737.80
  4. Step 4: Simplify right side
    353,713.80x = 131,682,860,892.54
  5. Step 5: Solve for x
    x = 131,682,860,892.54/353,713.80
  6. Step 6: Final answer
    x = 372,286.47

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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.