Home / 1,068,828.68-1,474,993.98-639,108.83

Finding the Fourth Proportional to 1,068,828.68, 1,474,993.98 and 639,108.83

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Solution

The fourth proportional to 1,068,828.68, 1,474,993.98 and 639,108.83 is: 881,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,828.68 : 1,474,993.98 = 639,108.83 : x
  2. Step 2: Convert to fraction form
    1,068,828.68/1,474,993.98 = 639,108.83/x
  3. Step 3: Cross multiply
    1,068,828.68x = 1,474,993.98 × 639,108.83
  4. Step 4: Simplify right side
    1,068,828.68x = 942,681,669,439.87
  5. Step 5: Solve for x
    x = 942,681,669,439.87/1,068,828.68
  6. Step 6: Final answer
    x = 881,976.40

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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.