Home / 855,203.59-1,179,215.17-639,652.87

Finding the Fourth Proportional to 855,203.59, 1,179,215.17 and 639,652.87

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Solution

The fourth proportional to 855,203.59, 1,179,215.17 and 639,652.87 is: 881,998.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,203.59 : 1,179,215.17 = 639,652.87 : x
  2. Step 2: Convert to fraction form
    855,203.59/1,179,215.17 = 639,652.87/x
  3. Step 3: Cross multiply
    855,203.59x = 1,179,215.17 × 639,652.87
  4. Step 4: Simplify right side
    855,203.59x = 754,288,367,838.04
  5. Step 5: Solve for x
    x = 754,288,367,838.04/855,203.59
  6. Step 6: Final answer
    x = 881,998.60

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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.