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Finding the Fourth Proportional to 511,226.88, 766,840.32 and 156,241.92

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Solution

The fourth proportional to 511,226.88, 766,840.32 and 156,241.92 is: 234,362.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,226.88 : 766,840.32 = 156,241.92 : x
  2. Step 2: Convert to fraction form
    511,226.88/766,840.32 = 156,241.92/x
  3. Step 3: Cross multiply
    511,226.88x = 766,840.32 × 156,241.92
  4. Step 4: Simplify right side
    511,226.88x = 119,812,603,930.21
  5. Step 5: Solve for x
    x = 119,812,603,930.21/511,226.88
  6. Step 6: Final answer
    x = 234,362.88

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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.