Home / 686,906.66-1,025,356.66-636,253.46

Finding the Fourth Proportional to 686,906.66, 1,025,356.66 and 636,253.46

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Solution

The fourth proportional to 686,906.66, 1,025,356.66 and 636,253.46 is: 949,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,906.66 : 1,025,356.66 = 636,253.46 : x
  2. Step 2: Convert to fraction form
    686,906.66/1,025,356.66 = 636,253.46/x
  3. Step 3: Cross multiply
    686,906.66x = 1,025,356.66 × 636,253.46
  4. Step 4: Simplify right side
    686,906.66x = 652,386,722,659.04
  5. Step 5: Solve for x
    x = 652,386,722,659.04/686,906.66
  6. Step 6: Final answer
    x = 949,745.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.