Home / 681,116.82-939,941.43-394,802.97

Finding the Fourth Proportional to 681,116.82, 939,941.43 and 394,802.97

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Solution

The fourth proportional to 681,116.82, 939,941.43 and 394,802.97 is: 544,828.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,116.82 : 939,941.43 = 394,802.97 : x
  2. Step 2: Convert to fraction form
    681,116.82/939,941.43 = 394,802.97/x
  3. Step 3: Cross multiply
    681,116.82x = 939,941.43 × 394,802.97
  4. Step 4: Simplify right side
    681,116.82x = 371,091,668,190.05
  5. Step 5: Solve for x
    x = 371,091,668,190.05/681,116.82
  6. Step 6: Final answer
    x = 544,828.23

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1.5x scale

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.