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Finding the Fourth Proportional to 777,765, 1,166,764.14 and 279,245.64

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Solution

The fourth proportional to 777,765, 1,166,764.14 and 279,245.64 is: 418,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,765 : 1,166,764.14 = 279,245.64 : x
  2. Step 2: Convert to fraction form
    777,765/1,166,764.14 = 279,245.64/x
  3. Step 3: Cross multiply
    777,765x = 1,166,764.14 × 279,245.64
  4. Step 4: Simplify right side
    777,765x = 325,813,799,003.35
  5. Step 5: Solve for x
    x = 325,813,799,003.35/777,765
  6. Step 6: Final answer
    x = 418,910.34

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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.