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Finding the Fourth Proportional to 694,674, 958,650.12 and 376,722

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Solution

The fourth proportional to 694,674, 958,650.12 and 376,722 is: 519,876.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,674 : 958,650.12 = 376,722 : x
  2. Step 2: Convert to fraction form
    694,674/958,650.12 = 376,722/x
  3. Step 3: Cross multiply
    694,674x = 958,650.12 × 376,722
  4. Step 4: Simplify right side
    694,674x = 361,144,590,506.64
  5. Step 5: Solve for x
    x = 361,144,590,506.64/694,674
  6. Step 6: Final answer
    x = 519,876.36

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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.