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Finding the Fourth Proportional to 518,191.06, 777,212.78 and 163,195.85

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Solution

The fourth proportional to 518,191.06, 777,212.78 and 163,195.85 is: 244,770.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,191.06 : 777,212.78 = 163,195.85 : x
  2. Step 2: Convert to fraction form
    518,191.06/777,212.78 = 163,195.85/x
  3. Step 3: Cross multiply
    518,191.06x = 777,212.78 × 163,195.85
  4. Step 4: Simplify right side
    518,191.06x = 126,837,900,262.96
  5. Step 5: Solve for x
    x = 126,837,900,262.96/518,191.06
  6. Step 6: Final answer
    x = 244,770.53

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1.5x scale

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.