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Finding the Fourth Proportional to 694,872.36, 958,914.72 and 393,066.36

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Solution

The fourth proportional to 694,872.36, 958,914.72 and 393,066.36 is: 542,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,872.36 : 958,914.72 = 393,066.36 : x
  2. Step 2: Convert to fraction form
    694,872.36/958,914.72 = 393,066.36/x
  3. Step 3: Cross multiply
    694,872.36x = 958,914.72 × 393,066.36
  4. Step 4: Simplify right side
    694,872.36x = 376,917,118,540.82
  5. Step 5: Solve for x
    x = 376,917,118,540.82/694,872.36
  6. Step 6: Final answer
    x = 542,426.41

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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.