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Finding the Fourth Proportional to 691,696.59, 954,517.92 and 381,611.58

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Solution

The fourth proportional to 691,696.59, 954,517.92 and 381,611.58 is: 526,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,696.59 : 954,517.92 = 381,611.58 : x
  2. Step 2: Convert to fraction form
    691,696.59/954,517.92 = 381,611.58/x
  3. Step 3: Cross multiply
    691,696.59x = 954,517.92 × 381,611.58
  4. Step 4: Simplify right side
    691,696.59x = 364,255,091,589.51
  5. Step 5: Solve for x
    x = 364,255,091,589.51/691,696.59
  6. Step 6: Final answer
    x = 526,611.08

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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.