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Finding the Fourth Proportional to 681,786.94, 940,873.23 and 375,874.27

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Solution

The fourth proportional to 681,786.94, 940,873.23 and 375,874.27 is: 518,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,786.94 : 940,873.23 = 375,874.27 : x
  2. Step 2: Convert to fraction form
    681,786.94/940,873.23 = 375,874.27/x
  3. Step 3: Cross multiply
    681,786.94x = 940,873.23 × 375,874.27
  4. Step 4: Simplify right side
    681,786.94x = 353,650,038,488.79
  5. Step 5: Solve for x
    x = 353,650,038,488.79/681,786.94
  6. Step 6: Final answer
    x = 518,710.49

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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.