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Finding the Fourth Proportional to 511,181.92, 766,910.91 and 156,186.22

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Solution

The fourth proportional to 511,181.92, 766,910.91 and 156,186.22 is: 234,321.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,181.92 : 766,910.91 = 156,186.22 : x
  2. Step 2: Convert to fraction form
    511,181.92/766,910.91 = 156,186.22/x
  3. Step 3: Cross multiply
    511,181.92x = 766,910.91 × 156,186.22
  4. Step 4: Simplify right side
    511,181.92x = 119,780,916,109.66
  5. Step 5: Solve for x
    x = 119,780,916,109.66/511,181.92
  6. Step 6: Final answer
    x = 234,321.50

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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.