Home / 856,208.02-1,182,361.29-640,974.46

Finding the Fourth Proportional to 856,208.02, 1,182,361.29 and 640,974.46

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Solution

The fourth proportional to 856,208.02, 1,182,361.29 and 640,974.46 is: 885,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,208.02 : 1,182,361.29 = 640,974.46 : x
  2. Step 2: Convert to fraction form
    856,208.02/1,182,361.29 = 640,974.46/x
  3. Step 3: Cross multiply
    856,208.02x = 1,182,361.29 × 640,974.46
  4. Step 4: Simplify right side
    856,208.02x = 757,863,389,382.65
  5. Step 5: Solve for x
    x = 757,863,389,382.65/856,208.02
  6. Step 6: Final answer
    x = 885,139.33

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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.