Home / 681,063.30-939,867.35-394,749.46

Finding the Fourth Proportional to 681,063.30, 939,867.35 and 394,749.46

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Solution

The fourth proportional to 681,063.30, 939,867.35 and 394,749.46 is: 544,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,063.30 : 939,867.35 = 394,749.46 : x
  2. Step 2: Convert to fraction form
    681,063.30/939,867.35 = 394,749.46/x
  3. Step 3: Cross multiply
    681,063.30x = 939,867.35 × 394,749.46
  4. Step 4: Simplify right side
    681,063.30x = 371,012,128,884.13
  5. Step 5: Solve for x
    x = 371,012,128,884.13/681,063.30
  6. Step 6: Final answer
    x = 544,754.25

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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.