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Finding the Fourth Proportional to 325,065.70, 486,648.15 and 231,753.70

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Solution

The fourth proportional to 325,065.70, 486,648.15 and 231,753.70 is: 346,952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,065.70 : 486,648.15 = 231,753.70 : x
  2. Step 2: Convert to fraction form
    325,065.70/486,648.15 = 231,753.70/x
  3. Step 3: Cross multiply
    325,065.70x = 486,648.15 × 231,753.70
  4. Step 4: Simplify right side
    325,065.70x = 112,782,509,360.66
  5. Step 5: Solve for x
    x = 112,782,509,360.66/325,065.70
  6. Step 6: Final answer
    x = 346,952.97

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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.