Home / 856,170.29-1,182,309.20-640,936.68

Finding the Fourth Proportional to 856,170.29, 1,182,309.20 and 640,936.68

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Solution

The fourth proportional to 856,170.29, 1,182,309.20 and 640,936.68 is: 885,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,170.29 : 1,182,309.20 = 640,936.68 : x
  2. Step 2: Convert to fraction form
    856,170.29/1,182,309.20 = 640,936.68/x
  3. Step 3: Cross multiply
    856,170.29x = 1,182,309.20 × 640,936.68
  4. Step 4: Simplify right side
    856,170.29x = 757,785,330,176.77
  5. Step 5: Solve for x
    x = 757,785,330,176.77/856,170.29
  6. Step 6: Final answer
    x = 885,087.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.