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Finding the Fourth Proportional to 511,611.86, 767,310.67 and 151,786.12

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Solution

The fourth proportional to 511,611.86, 767,310.67 and 151,786.12 is: 227,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,611.86 : 767,310.67 = 151,786.12 : x
  2. Step 2: Convert to fraction form
    511,611.86/767,310.67 = 151,786.12/x
  3. Step 3: Cross multiply
    511,611.86x = 767,310.67 × 151,786.12
  4. Step 4: Simplify right side
    511,611.86x = 116,467,109,433.90
  5. Step 5: Solve for x
    x = 116,467,109,433.90/511,611.86
  6. Step 6: Final answer
    x = 227,647.40

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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.