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Finding the Fourth Proportional to 352,690.93, 486,790.98 and 231,843.38

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Solution

The fourth proportional to 352,690.93, 486,790.98 and 231,843.38 is: 319,994.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,690.93 : 486,790.98 = 231,843.38 : x
  2. Step 2: Convert to fraction form
    352,690.93/486,790.98 = 231,843.38/x
  3. Step 3: Cross multiply
    352,690.93x = 486,790.98 × 231,843.38
  4. Step 4: Simplify right side
    352,690.93x = 112,859,266,156.71
  5. Step 5: Solve for x
    x = 112,859,266,156.71/352,690.93
  6. Step 6: Final answer
    x = 319,994.81

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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.