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Finding the Fourth Proportional to 694,424.11, 958,298.21 and 384,327.30

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Solution

The fourth proportional to 694,424.11, 958,298.21 and 384,327.30 is: 530,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,424.11 : 958,298.21 = 384,327.30 : x
  2. Step 2: Convert to fraction form
    694,424.11/958,298.21 = 384,327.30/x
  3. Step 3: Cross multiply
    694,424.11x = 958,298.21 × 384,327.30
  4. Step 4: Simplify right side
    694,424.11x = 368,300,163,644.13
  5. Step 5: Solve for x
    x = 368,300,163,644.13/694,424.11
  6. Step 6: Final answer
    x = 530,367.77

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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.