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Finding the Fourth Proportional to 3,609,483.87, 4,981,086.32 and 1,999,851.87

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Solution

The fourth proportional to 3,609,483.87, 4,981,086.32 and 1,999,851.87 is: 2,759,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609,483.87 : 4,981,086.32 = 1,999,851.87 : x
  2. Step 2: Convert to fraction form
    3,609,483.87/4,981,086.32 = 1,999,851.87/x
  3. Step 3: Cross multiply
    3,609,483.87x = 4,981,086.32 × 1,999,851.87
  4. Step 4: Simplify right side
    3,609,483.87x = 9,961,434,781,684.16
  5. Step 5: Solve for x
    x = 9,961,434,781,684.16/3,609,483.87
  6. Step 6: Final answer
    x = 2,759,794.79

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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.