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Finding the Fourth Proportional to 694,869, 958,919.22 and 376,917

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Solution

The fourth proportional to 694,869, 958,919.22 and 376,917 is: 520,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,869 : 958,919.22 = 376,917 : x
  2. Step 2: Convert to fraction form
    694,869/958,919.22 = 376,917/x
  3. Step 3: Cross multiply
    694,869x = 958,919.22 × 376,917
  4. Step 4: Simplify right side
    694,869x = 361,432,955,644.74
  5. Step 5: Solve for x
    x = 361,432,955,644.74/694,869
  6. Step 6: Final answer
    x = 520,145.46

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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.