Home / 1,200,518.33-1,656,858.17-691,319.93

Finding the Fourth Proportional to 1,200,518.33, 1,656,858.17 and 691,319.93

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Solution

The fourth proportional to 1,200,518.33, 1,656,858.17 and 691,319.93 is: 954,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,518.33 : 1,656,858.17 = 691,319.93 : x
  2. Step 2: Convert to fraction form
    1,200,518.33/1,656,858.17 = 691,319.93/x
  3. Step 3: Cross multiply
    1,200,518.33x = 1,656,858.17 × 691,319.93
  4. Step 4: Simplify right side
    1,200,518.33x = 1,145,419,067,548.34
  5. Step 5: Solve for x
    x = 1,145,419,067,548.34/1,200,518.33
  6. Step 6: Final answer
    x = 954,103.78

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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.