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Finding the Fourth Proportional to 694,980.75, 959,066.96 and 393,174.75

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Solution

The fourth proportional to 694,980.75, 959,066.96 and 393,174.75 is: 542,577.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,980.75 : 959,066.96 = 393,174.75 : x
  2. Step 2: Convert to fraction form
    694,980.75/959,066.96 = 393,174.75/x
  3. Step 3: Cross multiply
    694,980.75x = 959,066.96 × 393,174.75
  4. Step 4: Simplify right side
    694,980.75x = 377,080,910,265.39
  5. Step 5: Solve for x
    x = 377,080,910,265.39/694,980.75
  6. Step 6: Final answer
    x = 542,577.49

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1.5x scale

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.