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Finding the Fourth Proportional to 996,749,964.60, 1,375,529,382.54 and 550,723,589.88

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Solution

The fourth proportional to 996,749,964.60, 1,375,529,382.54 and 550,723,589.88 is: 760,006,527.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,749,964.60 : 1,375,529,382.54 = 550,723,589.88 : x
  2. Step 2: Convert to fraction form
    996,749,964.60/1,375,529,382.54 = 550,723,589.88/x
  3. Step 3: Cross multiply
    996,749,964.60x = 1,375,529,382.54 × 550,723,589.88
  4. Step 4: Simplify right side
    996,749,964.60x = 757,536,479,537,848,576
  5. Step 5: Solve for x
    x = 757,536,479,537,848,576/996,749,964.60
  6. Step 6: Final answer
    x = 760,006,527.66

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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.