Home / 1,306,668.36-1,959,587.82-419,997

Finding the Fourth Proportional to 1,306,668.36, 1,959,587.82 and 419,997

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Solution

The fourth proportional to 1,306,668.36, 1,959,587.82 and 419,997 is: 629,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,668.36 : 1,959,587.82 = 419,997 : x
  2. Step 2: Convert to fraction form
    1,306,668.36/1,959,587.82 = 419,997/x
  3. Step 3: Cross multiply
    1,306,668.36x = 1,959,587.82 × 419,997
  4. Step 4: Simplify right side
    1,306,668.36x = 823,021,005,636.54
  5. Step 5: Solve for x
    x = 823,021,005,636.54/1,306,668.36
  6. Step 6: Final answer
    x = 629,862.20

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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.