Home / 1,661,883.80-2,489,139.30-664,098.20

Finding the Fourth Proportional to 1,661,883.80, 2,489,139.30 and 664,098.20

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Solution

The fourth proportional to 1,661,883.80, 2,489,139.30 and 664,098.20 is: 994,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,883.80 : 2,489,139.30 = 664,098.20 : x
  2. Step 2: Convert to fraction form
    1,661,883.80/2,489,139.30 = 664,098.20/x
  3. Step 3: Cross multiply
    1,661,883.80x = 2,489,139.30 × 664,098.20
  4. Step 4: Simplify right side
    1,661,883.80x = 1,653,032,928,679.26
  5. Step 5: Solve for x
    x = 1,653,032,928,679.26/1,661,883.80
  6. Step 6: Final answer
    x = 994,674.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.