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Finding the Fourth Proportional to 331,293.60, 457,183.44 and 186,079.20

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Solution

The fourth proportional to 331,293.60, 457,183.44 and 186,079.20 is: 256,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,293.60 : 457,183.44 = 186,079.20 : x
  2. Step 2: Convert to fraction form
    331,293.60/457,183.44 = 186,079.20/x
  3. Step 3: Cross multiply
    331,293.60x = 457,183.44 × 186,079.20
  4. Step 4: Simplify right side
    331,293.60x = 85,072,328,768.45
  5. Step 5: Solve for x
    x = 85,072,328,768.45/331,293.60
  6. Step 6: Final answer
    x = 256,788.33

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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.