Home / 1,218,577.72-1,681,635.90-682,033.72

Finding the Fourth Proportional to 1,218,577.72, 1,681,635.90 and 682,033.72

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Solution

The fourth proportional to 1,218,577.72, 1,681,635.90 and 682,033.72 is: 941,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,577.72 : 1,681,635.90 = 682,033.72 : x
  2. Step 2: Convert to fraction form
    1,218,577.72/1,681,635.90 = 682,033.72/x
  3. Step 3: Cross multiply
    1,218,577.72x = 1,681,635.90 × 682,033.72
  4. Step 4: Simplify right side
    1,218,577.72x = 1,146,932,388,562.55
  5. Step 5: Solve for x
    x = 1,146,932,388,562.55/1,218,577.72
  6. Step 6: Final answer
    x = 941,205.78

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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.