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Finding the Fourth Proportional to 357,910.35, 535,697.30 and 263,115.44

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Solution

The fourth proportional to 357,910.35, 535,697.30 and 263,115.44 is: 393,814.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,910.35 : 535,697.30 = 263,115.44 : x
  2. Step 2: Convert to fraction form
    357,910.35/535,697.30 = 263,115.44/x
  3. Step 3: Cross multiply
    357,910.35x = 535,697.30 × 263,115.44
  4. Step 4: Simplify right side
    357,910.35x = 140,950,230,796.31
  5. Step 5: Solve for x
    x = 140,950,230,796.31/357,910.35
  6. Step 6: Final answer
    x = 393,814.35

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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.