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Finding the Fourth Proportional to 617,343.76, 926,162.68 and 196,618.96

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Solution

The fourth proportional to 617,343.76, 926,162.68 and 196,618.96 is: 294,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,343.76 : 926,162.68 = 196,618.96 : x
  2. Step 2: Convert to fraction form
    617,343.76/926,162.68 = 196,618.96/x
  3. Step 3: Cross multiply
    617,343.76x = 926,162.68 × 196,618.96
  4. Step 4: Simplify right side
    617,343.76x = 182,101,142,932.41
  5. Step 5: Solve for x
    x = 182,101,142,932.41/617,343.76
  6. Step 6: Final answer
    x = 294,975.27

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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.