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Finding the Fourth Proportional to 351,967.69, 486,116.33 and 238,593.61

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Solution

The fourth proportional to 351,967.69, 486,116.33 and 238,593.61 is: 329,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,967.69 : 486,116.33 = 238,593.61 : x
  2. Step 2: Convert to fraction form
    351,967.69/486,116.33 = 238,593.61/x
  3. Step 3: Cross multiply
    351,967.69x = 486,116.33 × 238,593.61
  4. Step 4: Simplify right side
    351,967.69x = 115,984,250,054.65
  5. Step 5: Solve for x
    x = 115,984,250,054.65/351,967.69
  6. Step 6: Final answer
    x = 329,530.96

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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.