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Finding the Fourth Proportional to 694,861.75, 958,772.89 and 436,589.06

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Solution

The fourth proportional to 694,861.75, 958,772.89 and 436,589.06 is: 602,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,861.75 : 958,772.89 = 436,589.06 : x
  2. Step 2: Convert to fraction form
    694,861.75/958,772.89 = 436,589.06/x
  3. Step 3: Cross multiply
    694,861.75x = 958,772.89 × 436,589.06
  4. Step 4: Simplify right side
    694,861.75x = 418,589,753,487.74
  5. Step 5: Solve for x
    x = 418,589,753,487.74/694,861.75
  6. Step 6: Final answer
    x = 602,407.25

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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.