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Finding the Fourth Proportional to 694,992, 959,082.48 and 393,186

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Solution

The fourth proportional to 694,992, 959,082.48 and 393,186 is: 542,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,992 : 959,082.48 = 393,186 : x
  2. Step 2: Convert to fraction form
    694,992/959,082.48 = 393,186/x
  3. Step 3: Cross multiply
    694,992x = 959,082.48 × 393,186
  4. Step 4: Simplify right side
    694,992x = 377,097,803,981.28
  5. Step 5: Solve for x
    x = 377,097,803,981.28/694,992
  6. Step 6: Final answer
    x = 542,593.01

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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.