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Finding the Fourth Proportional to 959,982,561.81, 1,324,883,449.22 and 542,321,751.31

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Solution

The fourth proportional to 959,982,561.81, 1,324,883,449.22 and 542,321,751.31 is: 748,464,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,982,561.81 : 1,324,883,449.22 = 542,321,751.31 : x
  2. Step 2: Convert to fraction form
    959,982,561.81/1,324,883,449.22 = 542,321,751.31/x
  3. Step 3: Cross multiply
    959,982,561.81x = 1,324,883,449.22 × 542,321,751.31
  4. Step 4: Simplify right side
    959,982,561.81x = 718,513,112,456,599,936
  5. Step 5: Solve for x
    x = 718,513,112,456,599,936/959,982,561.81
  6. Step 6: Final answer
    x = 748,464,754.51

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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.