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Finding the Fourth Proportional to 2,865,611.66, 3,954,576.74 and 1,641,892.61

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Solution

The fourth proportional to 2,865,611.66, 3,954,576.74 and 1,641,892.61 is: 2,265,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865,611.66 : 3,954,576.74 = 1,641,892.61 : x
  2. Step 2: Convert to fraction form
    2,865,611.66/3,954,576.74 = 1,641,892.61/x
  3. Step 3: Cross multiply
    2,865,611.66x = 3,954,576.74 × 1,641,892.61
  4. Step 4: Simplify right side
    2,865,611.66x = 6,492,990,326,760.87
  5. Step 5: Solve for x
    x = 6,492,990,326,760.87/2,865,611.66
  6. Step 6: Final answer
    x = 2,265,830.51

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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.