Home / 1,243,398.78-1,715,840.31-699,545.34

Finding the Fourth Proportional to 1,243,398.78, 1,715,840.31 and 699,545.34

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Solution

The fourth proportional to 1,243,398.78, 1,715,840.31 and 699,545.34 is: 965,344.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,398.78 : 1,715,840.31 = 699,545.34 : x
  2. Step 2: Convert to fraction form
    1,243,398.78/1,715,840.31 = 699,545.34/x
  3. Step 3: Cross multiply
    1,243,398.78x = 1,715,840.31 × 699,545.34
  4. Step 4: Simplify right side
    1,243,398.78x = 1,200,308,093,044.66
  5. Step 5: Solve for x
    x = 1,200,308,093,044.66/1,243,398.78
  6. Step 6: Final answer
    x = 965,344.44

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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.