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Finding the Fourth Proportional to 496,091.70, 744,310.35 and 215,810.10

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Solution

The fourth proportional to 496,091.70, 744,310.35 and 215,810.10 is: 323,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,091.70 : 744,310.35 = 215,810.10 : x
  2. Step 2: Convert to fraction form
    496,091.70/744,310.35 = 215,810.10/x
  3. Step 3: Cross multiply
    496,091.70x = 744,310.35 × 215,810.10
  4. Step 4: Simplify right side
    496,091.70x = 160,629,691,064.54
  5. Step 5: Solve for x
    x = 160,629,691,064.54/496,091.70
  6. Step 6: Final answer
    x = 323,790.32

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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.