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Finding the Fourth Proportional to 331,612.96, 457,778.64 and 195,600.64

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Solution

The fourth proportional to 331,612.96, 457,778.64 and 195,600.64 is: 270,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,612.96 : 457,778.64 = 195,600.64 : x
  2. Step 2: Convert to fraction form
    331,612.96/457,778.64 = 195,600.64/x
  3. Step 3: Cross multiply
    331,612.96x = 457,778.64 × 195,600.64
  4. Step 4: Simplify right side
    331,612.96x = 89,541,794,962.33
  5. Step 5: Solve for x
    x = 89,541,794,962.33/331,612.96
  6. Step 6: Final answer
    x = 270,018.99

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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.