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Finding the Fourth Proportional to 511,455.24, 767,213.55 and 156,472.32

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Solution

The fourth proportional to 511,455.24, 767,213.55 and 156,472.32 is: 234,717.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,455.24 : 767,213.55 = 156,472.32 : x
  2. Step 2: Convert to fraction form
    511,455.24/767,213.55 = 156,472.32/x
  3. Step 3: Cross multiply
    511,455.24x = 767,213.55 × 156,472.32
  4. Step 4: Simplify right side
    511,455.24x = 120,047,684,103.94
  5. Step 5: Solve for x
    x = 120,047,684,103.94/511,455.24
  6. Step 6: Final answer
    x = 234,717.87

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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.