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Finding the Fourth Proportional to 451,617.16, 677,471.10 and 119,193.16

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Solution

The fourth proportional to 451,617.16, 677,471.10 and 119,193.16 is: 178,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,617.16 : 677,471.10 = 119,193.16 : x
  2. Step 2: Convert to fraction form
    451,617.16/677,471.10 = 119,193.16/x
  3. Step 3: Cross multiply
    451,617.16x = 677,471.10 × 119,193.16
  4. Step 4: Simplify right side
    451,617.16x = 80,749,921,217.68
  5. Step 5: Solve for x
    x = 80,749,921,217.68/451,617.16
  6. Step 6: Final answer
    x = 178,801.71

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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.