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Finding the Fourth Proportional to 681,782.27, 940,862.42 and 375,851.66

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Solution

The fourth proportional to 681,782.27, 940,862.42 and 375,851.66 is: 518,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,782.27 : 940,862.42 = 375,851.66 : x
  2. Step 2: Convert to fraction form
    681,782.27/940,862.42 = 375,851.66/x
  3. Step 3: Cross multiply
    681,782.27x = 940,862.42 × 375,851.66
  4. Step 4: Simplify right side
    681,782.27x = 353,624,700,509.36
  5. Step 5: Solve for x
    x = 353,624,700,509.36/681,782.27
  6. Step 6: Final answer
    x = 518,676.88

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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.