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Finding the Fourth Proportional to 620,481.22, 930,610.95 and 165,074.92

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Solution

The fourth proportional to 620,481.22, 930,610.95 and 165,074.92 is: 247,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,481.22 : 930,610.95 = 165,074.92 : x
  2. Step 2: Convert to fraction form
    620,481.22/930,610.95 = 165,074.92/x
  3. Step 3: Cross multiply
    620,481.22x = 930,610.95 × 165,074.92
  4. Step 4: Simplify right side
    620,481.22x = 153,620,523,469.32
  5. Step 5: Solve for x
    x = 153,620,523,469.32/620,481.22
  6. Step 6: Final answer
    x = 247,582.88

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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.