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Finding the Fourth Proportional to 451,912.32, 623,618.13 and 247,958.16

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Solution

The fourth proportional to 451,912.32, 623,618.13 and 247,958.16 is: 342,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,912.32 : 623,618.13 = 247,958.16 : x
  2. Step 2: Convert to fraction form
    451,912.32/623,618.13 = 247,958.16/x
  3. Step 3: Cross multiply
    451,912.32x = 623,618.13 × 247,958.16
  4. Step 4: Simplify right side
    451,912.32x = 154,631,204,057.44
  5. Step 5: Solve for x
    x = 154,631,204,057.44/451,912.32
  6. Step 6: Final answer
    x = 342,170.81

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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.