Home / 1,511,668.40-2,086,023.66-938,696.28

Finding the Fourth Proportional to 1,511,668.40, 2,086,023.66 and 938,696.28

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Solution

The fourth proportional to 1,511,668.40, 2,086,023.66 and 938,696.28 is: 1,295,351.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,668.40 : 2,086,023.66 = 938,696.28 : x
  2. Step 2: Convert to fraction form
    1,511,668.40/2,086,023.66 = 938,696.28/x
  3. Step 3: Cross multiply
    1,511,668.40x = 2,086,023.66 × 938,696.28
  4. Step 4: Simplify right side
    1,511,668.40x = 1,958,142,649,633.99
  5. Step 5: Solve for x
    x = 1,958,142,649,633.99/1,511,668.40
  6. Step 6: Final answer
    x = 1,295,351.98

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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.