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Finding the Fourth Proportional to 696,863,496.53, 961,691,449.31 and 379,344,219.56

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Solution

The fourth proportional to 696,863,496.53, 961,691,449.31 and 379,344,219.56 is: 523,505,814.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,863,496.53 : 961,691,449.31 = 379,344,219.56 : x
  2. Step 2: Convert to fraction form
    696,863,496.53/961,691,449.31 = 379,344,219.56/x
  3. Step 3: Cross multiply
    696,863,496.53x = 961,691,449.31 × 379,344,219.56
  4. Step 4: Simplify right side
    696,863,496.53x = 364,812,092,296,027,200
  5. Step 5: Solve for x
    x = 364,812,092,296,027,200/696,863,496.53
  6. Step 6: Final answer
    x = 523,505,814.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.