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Finding the Fourth Proportional to 285,696.44, 428,548.32 and 196,926.12

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Solution

The fourth proportional to 285,696.44, 428,548.32 and 196,926.12 is: 295,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,696.44 : 428,548.32 = 196,926.12 : x
  2. Step 2: Convert to fraction form
    285,696.44/428,548.32 = 196,926.12/x
  3. Step 3: Cross multiply
    285,696.44x = 428,548.32 × 196,926.12
  4. Step 4: Simplify right side
    285,696.44x = 84,392,357,890.12
  5. Step 5: Solve for x
    x = 84,392,357,890.12/285,696.44
  6. Step 6: Final answer
    x = 295,391.70

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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.