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Finding the Fourth Proportional to 710,993.52, 981,231.84 and 405,163.44

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Solution

The fourth proportional to 710,993.52, 981,231.84 and 405,163.44 is: 559,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,993.52 : 981,231.84 = 405,163.44 : x
  2. Step 2: Convert to fraction form
    710,993.52/981,231.84 = 405,163.44/x
  3. Step 3: Cross multiply
    710,993.52x = 981,231.84 × 405,163.44
  4. Step 4: Simplify right side
    710,993.52x = 397,559,267,731.93
  5. Step 5: Solve for x
    x = 397,559,267,731.93/710,993.52
  6. Step 6: Final answer
    x = 559,160.18

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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.