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Finding the Fourth Proportional to 681,782.77, 940,863.11 and 375,852.16

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Solution

The fourth proportional to 681,782.77, 940,863.11 and 375,852.16 is: 518,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,782.77 : 940,863.11 = 375,852.16 : x
  2. Step 2: Convert to fraction form
    681,782.77/940,863.11 = 375,852.16/x
  3. Step 3: Cross multiply
    681,782.77x = 940,863.11 × 375,852.16
  4. Step 4: Simplify right side
    681,782.77x = 353,625,430,278.56
  5. Step 5: Solve for x
    x = 353,625,430,278.56/681,782.77
  6. Step 6: Final answer
    x = 518,677.57

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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.