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Finding the Fourth Proportional to 681,634.33, 940,612.58 and 375,693.88

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Solution

The fourth proportional to 681,634.33, 940,612.58 and 375,693.88 is: 518,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,634.33 : 940,612.58 = 375,693.88 : x
  2. Step 2: Convert to fraction form
    681,634.33/940,612.58 = 375,693.88/x
  3. Step 3: Cross multiply
    681,634.33x = 940,612.58 × 375,693.88
  4. Step 4: Simplify right side
    681,634.33x = 353,382,389,757.01
  5. Step 5: Solve for x
    x = 353,382,389,757.01/681,634.33
  6. Step 6: Final answer
    x = 518,433.97

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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.