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Finding the Fourth Proportional to 455,842.30, 682,779.30 and 396,793.30

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Solution

The fourth proportional to 455,842.30, 682,779.30 and 396,793.30 is: 594,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,842.30 : 682,779.30 = 396,793.30 : x
  2. Step 2: Convert to fraction form
    455,842.30/682,779.30 = 396,793.30/x
  3. Step 3: Cross multiply
    455,842.30x = 682,779.30 × 396,793.30
  4. Step 4: Simplify right side
    455,842.30x = 270,922,251,618.69
  5. Step 5: Solve for x
    x = 270,922,251,618.69/455,842.30
  6. Step 6: Final answer
    x = 594,333.29

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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.