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Finding the Fourth Proportional to 892,806.54, 1,232,081.92 and 484,912.20

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Solution

The fourth proportional to 892,806.54, 1,232,081.92 and 484,912.20 is: 669,183.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,806.54 : 1,232,081.92 = 484,912.20 : x
  2. Step 2: Convert to fraction form
    892,806.54/1,232,081.92 = 484,912.20/x
  3. Step 3: Cross multiply
    892,806.54x = 1,232,081.92 × 484,912.20
  4. Step 4: Simplify right side
    892,806.54x = 597,451,554,407.42
  5. Step 5: Solve for x
    x = 597,451,554,407.42/892,806.54
  6. Step 6: Final answer
    x = 669,183.67

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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.