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Finding the Fourth Proportional to 452,593.65, 678,890.40 and 115,634.97

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Solution

The fourth proportional to 452,593.65, 678,890.40 and 115,634.97 is: 173,452.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,593.65 : 678,890.40 = 115,634.97 : x
  2. Step 2: Convert to fraction form
    452,593.65/678,890.40 = 115,634.97/x
  3. Step 3: Cross multiply
    452,593.65x = 678,890.40 × 115,634.97
  4. Step 4: Simplify right side
    452,593.65x = 78,503,471,037.29
  5. Step 5: Solve for x
    x = 78,503,471,037.29/452,593.65
  6. Step 6: Final answer
    x = 173,452.44

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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.