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Finding the Fourth Proportional to 516,697.20, 775,063.29 and 179,740.77

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Solution

The fourth proportional to 516,697.20, 775,063.29 and 179,740.77 is: 269,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,697.20 : 775,063.29 = 179,740.77 : x
  2. Step 2: Convert to fraction form
    516,697.20/775,063.29 = 179,740.77/x
  3. Step 3: Cross multiply
    516,697.20x = 775,063.29 × 179,740.77
  4. Step 4: Simplify right side
    516,697.20x = 139,310,469,636.85
  5. Step 5: Solve for x
    x = 139,310,469,636.85/516,697.20
  6. Step 6: Final answer
    x = 269,617.23

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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.