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Finding the Fourth Proportional to 486,944.32, 730,416.49 and 131,958.33

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Solution

The fourth proportional to 486,944.32, 730,416.49 and 131,958.33 is: 197,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,944.32 : 730,416.49 = 131,958.33 : x
  2. Step 2: Convert to fraction form
    486,944.32/730,416.49 = 131,958.33/x
  3. Step 3: Cross multiply
    486,944.32x = 730,416.49 × 131,958.33
  4. Step 4: Simplify right side
    486,944.32x = 96,384,540,224.86
  5. Step 5: Solve for x
    x = 96,384,540,224.86/486,944.32
  6. Step 6: Final answer
    x = 197,937.50

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Double scale
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Similar ratio
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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.