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Finding the Fourth Proportional to 313,169.82, 469,150.08 and 186,910.86

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Solution

The fourth proportional to 313,169.82, 469,150.08 and 186,910.86 is: 280,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,169.82 : 469,150.08 = 186,910.86 : x
  2. Step 2: Convert to fraction form
    313,169.82/469,150.08 = 186,910.86/x
  3. Step 3: Cross multiply
    313,169.82x = 469,150.08 × 186,910.86
  4. Step 4: Simplify right side
    313,169.82x = 87,689,244,921.87
  5. Step 5: Solve for x
    x = 87,689,244,921.87/313,169.82
  6. Step 6: Final answer
    x = 280,005.41

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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.