Home / 1,199,942.12-1,655,920.27-656,078.28

Finding the Fourth Proportional to 1,199,942.12, 1,655,920.27 and 656,078.28

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Solution

The fourth proportional to 1,199,942.12, 1,655,920.27 and 656,078.28 is: 905,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199,942.12 : 1,655,920.27 = 656,078.28 : x
  2. Step 2: Convert to fraction form
    1,199,942.12/1,655,920.27 = 656,078.28/x
  3. Step 3: Cross multiply
    1,199,942.12x = 1,655,920.27 × 656,078.28
  4. Step 4: Simplify right side
    1,199,942.12x = 1,086,413,322,558.74
  5. Step 5: Solve for x
    x = 1,086,413,322,558.74/1,199,942.12
  6. Step 6: Final answer
    x = 905,388.11

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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.