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Finding the Fourth Proportional to 511,245.72, 766,840.68 and 156,259.62

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Solution

The fourth proportional to 511,245.72, 766,840.68 and 156,259.62 is: 234,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,245.72 : 766,840.68 = 156,259.62 : x
  2. Step 2: Convert to fraction form
    511,245.72/766,840.68 = 156,259.62/x
  3. Step 3: Cross multiply
    511,245.72x = 766,840.68 × 156,259.62
  4. Step 4: Simplify right side
    511,245.72x = 119,826,233,257.34
  5. Step 5: Solve for x
    x = 119,826,233,257.34/511,245.72
  6. Step 6: Final answer
    x = 234,380.90

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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.