Home / 1,208,406.09-1,667,643.19-664,583.97

Finding the Fourth Proportional to 1,208,406.09, 1,667,643.19 and 664,583.97

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Solution

The fourth proportional to 1,208,406.09, 1,667,643.19 and 664,583.97 is: 917,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,406.09 : 1,667,643.19 = 664,583.97 : x
  2. Step 2: Convert to fraction form
    1,208,406.09/1,667,643.19 = 664,583.97/x
  3. Step 3: Cross multiply
    1,208,406.09x = 1,667,643.19 × 664,583.97
  4. Step 4: Simplify right side
    1,208,406.09x = 1,108,288,931,753.66
  5. Step 5: Solve for x
    x = 1,108,288,931,753.66/1,208,406.09
  6. Step 6: Final answer
    x = 917,149.41

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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.