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Finding the Fourth Proportional to 681,997.62, 941,136.12 and 376,073.86

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Solution

The fourth proportional to 681,997.62, 941,136.12 and 376,073.86 is: 518,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,997.62 : 941,136.12 = 376,073.86 : x
  2. Step 2: Convert to fraction form
    681,997.62/941,136.12 = 376,073.86/x
  3. Step 3: Cross multiply
    681,997.62x = 941,136.12 × 376,073.86
  4. Step 4: Simplify right side
    681,997.62x = 353,936,693,433.82
  5. Step 5: Solve for x
    x = 353,936,693,433.82/681,997.62
  6. Step 6: Final answer
    x = 518,970.57

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1.5x scale

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.