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Finding the Fourth Proportional to 693,144.92, 957,855.27 and 500,185.91

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Solution

The fourth proportional to 693,144.92, 957,855.27 and 500,185.91 is: 691,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,144.92 : 957,855.27 = 500,185.91 : x
  2. Step 2: Convert to fraction form
    693,144.92/957,855.27 = 500,185.91/x
  3. Step 3: Cross multiply
    693,144.92x = 957,855.27 × 500,185.91
  4. Step 4: Simplify right side
    693,144.92x = 479,105,705,083.97
  5. Step 5: Solve for x
    x = 479,105,705,083.97/693,144.92
  6. Step 6: Final answer
    x = 691,205.68

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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.