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Finding the Fourth Proportional to 694,881, 958,935.78 and 376,929

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Solution

The fourth proportional to 694,881, 958,935.78 and 376,929 is: 520,162.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,881 : 958,935.78 = 376,929 : x
  2. Step 2: Convert to fraction form
    694,881/958,935.78 = 376,929/x
  3. Step 3: Cross multiply
    694,881x = 958,935.78 × 376,929
  4. Step 4: Simplify right side
    694,881x = 361,450,704,619.62
  5. Step 5: Solve for x
    x = 361,450,704,619.62/694,881
  6. Step 6: Final answer
    x = 520,162.02

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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.