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Finding the Fourth Proportional to 352,679.44, 486,846.54 and 238,113.28

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Solution

The fourth proportional to 352,679.44, 486,846.54 and 238,113.28 is: 328,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,679.44 : 486,846.54 = 238,113.28 : x
  2. Step 2: Convert to fraction form
    352,679.44/486,846.54 = 238,113.28/x
  3. Step 3: Cross multiply
    352,679.44x = 486,846.54 × 238,113.28
  4. Step 4: Simplify right side
    352,679.44x = 115,924,626,496.05
  5. Step 5: Solve for x
    x = 115,924,626,496.05/352,679.44
  6. Step 6: Final answer
    x = 328,696.87

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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.