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Finding the Fourth Proportional to 395,909.08, 593,163.78 and 262,472.92

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Solution

The fourth proportional to 395,909.08, 593,163.78 and 262,472.92 is: 393,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,909.08 : 593,163.78 = 262,472.92 : x
  2. Step 2: Convert to fraction form
    395,909.08/593,163.78 = 262,472.92/x
  3. Step 3: Cross multiply
    395,909.08x = 593,163.78 × 262,472.92
  4. Step 4: Simplify right side
    395,909.08x = 155,689,429,374.84
  5. Step 5: Solve for x
    x = 155,689,429,374.84/395,909.08
  6. Step 6: Final answer
    x = 393,245.41

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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.