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Finding the Fourth Proportional to 4,659,573.69, 6,986,506.28 and 1,816,364.25

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Solution

The fourth proportional to 4,659,573.69, 6,986,506.28 and 1,816,364.25 is: 2,723,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659,573.69 : 6,986,506.28 = 1,816,364.25 : x
  2. Step 2: Convert to fraction form
    4,659,573.69/6,986,506.28 = 1,816,364.25/x
  3. Step 3: Cross multiply
    4,659,573.69x = 6,986,506.28 × 1,816,364.25
  4. Step 4: Simplify right side
    4,659,573.69x = 12,690,040,230,310.67
  5. Step 5: Solve for x
    x = 12,690,040,230,310.67/4,659,573.69
  6. Step 6: Final answer
    x = 2,723,433.75

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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.