Home / 1,292,618.70-1,939,813.56-451,170.36

Finding the Fourth Proportional to 1,292,618.70, 1,939,813.56 and 451,170.36

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Solution

The fourth proportional to 1,292,618.70, 1,939,813.56 and 451,170.36 is: 677,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,618.70 : 1,939,813.56 = 451,170.36 : x
  2. Step 2: Convert to fraction form
    1,292,618.70/1,939,813.56 = 451,170.36/x
  3. Step 3: Cross multiply
    1,292,618.70x = 1,939,813.56 × 451,170.36
  4. Step 4: Simplify right side
    1,292,618.70x = 875,186,382,198.08
  5. Step 5: Solve for x
    x = 875,186,382,198.08/1,292,618.70
  6. Step 6: Final answer
    x = 677,064.61

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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.