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Finding the Fourth Proportional to 493,909.26, 681,830.37 and 330,846.54

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Solution

The fourth proportional to 493,909.26, 681,830.37 and 330,846.54 is: 456,726.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,909.26 : 681,830.37 = 330,846.54 : x
  2. Step 2: Convert to fraction form
    493,909.26/681,830.37 = 330,846.54/x
  3. Step 3: Cross multiply
    493,909.26x = 681,830.37 × 330,846.54
  4. Step 4: Simplify right side
    493,909.26x = 225,581,218,781.42
  5. Step 5: Solve for x
    x = 225,581,218,781.42/493,909.26
  6. Step 6: Final answer
    x = 456,726.04

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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.