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Finding the Fourth Proportional to 505,914.96, 698,171.80 and 276,481.96

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Solution

The fourth proportional to 505,914.96, 698,171.80 and 276,481.96 is: 381,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,914.96 : 698,171.80 = 276,481.96 : x
  2. Step 2: Convert to fraction form
    505,914.96/698,171.80 = 276,481.96/x
  3. Step 3: Cross multiply
    505,914.96x = 698,171.80 × 276,481.96
  4. Step 4: Simplify right side
    505,914.96x = 193,031,907,680.73
  5. Step 5: Solve for x
    x = 193,031,907,680.73/505,914.96
  6. Step 6: Final answer
    x = 381,550.11

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1.5x scale

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.