Home / 1,754,967.21-2,419,512.76-1,393,587.33

Finding the Fourth Proportional to 1,754,967.21, 2,419,512.76 and 1,393,587.33

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Solution

The fourth proportional to 1,754,967.21, 2,419,512.76 and 1,393,587.33 is: 1,921,290.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,967.21 : 2,419,512.76 = 1,393,587.33 : x
  2. Step 2: Convert to fraction form
    1,754,967.21/2,419,512.76 = 1,393,587.33/x
  3. Step 3: Cross multiply
    1,754,967.21x = 2,419,512.76 × 1,393,587.33
  4. Step 4: Simplify right side
    1,754,967.21x = 3,371,802,327,109.33
  5. Step 5: Solve for x
    x = 3,371,802,327,109.33/1,754,967.21
  6. Step 6: Final answer
    x = 1,921,290.78

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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.