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Finding the Fourth Proportional to 681,647.59, 940,727.89 and 375,778.63

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Solution

The fourth proportional to 681,647.59, 940,727.89 and 375,778.63 is: 518,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,647.59 : 940,727.89 = 375,778.63 : x
  2. Step 2: Convert to fraction form
    681,647.59/940,727.89 = 375,778.63/x
  3. Step 3: Cross multiply
    681,647.59x = 940,727.89 × 375,778.63
  4. Step 4: Simplify right side
    681,647.59x = 353,505,437,706.99
  5. Step 5: Solve for x
    x = 353,505,437,706.99/681,647.59
  6. Step 6: Final answer
    x = 518,604.40

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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.