Home / 681,263.16-940,143.42-394,949.22

Finding the Fourth Proportional to 681,263.16, 940,143.42 and 394,949.22

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Solution

The fourth proportional to 681,263.16, 940,143.42 and 394,949.22 is: 545,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,263.16 : 940,143.42 = 394,949.22 : x
  2. Step 2: Convert to fraction form
    681,263.16/940,143.42 = 394,949.22/x
  3. Step 3: Cross multiply
    681,263.16x = 940,143.42 × 394,949.22
  4. Step 4: Simplify right side
    681,263.16x = 371,308,910,417.13
  5. Step 5: Solve for x
    x = 371,308,910,417.13/681,263.16
  6. Step 6: Final answer
    x = 545,030.07

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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.