Home / 1,511,663.40-2,086,016.76-938,691.27

Finding the Fourth Proportional to 1,511,663.40, 2,086,016.76 and 938,691.27

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Solution

The fourth proportional to 1,511,663.40, 2,086,016.76 and 938,691.27 is: 1,295,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,663.40 : 2,086,016.76 = 938,691.27 : x
  2. Step 2: Convert to fraction form
    1,511,663.40/2,086,016.76 = 938,691.27/x
  3. Step 3: Cross multiply
    1,511,663.40x = 2,086,016.76 × 938,691.27
  4. Step 4: Simplify right side
    1,511,663.40x = 1,958,125,721,685.69
  5. Step 5: Solve for x
    x = 1,958,125,721,685.69/1,511,663.40
  6. Step 6: Final answer
    x = 1,295,345.06

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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.