Home / 1,333,411.51-1,840,112.73-721,564.20

Finding the Fourth Proportional to 1,333,411.51, 1,840,112.73 and 721,564.20

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Solution

The fourth proportional to 1,333,411.51, 1,840,112.73 and 721,564.20 is: 995,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,411.51 : 1,840,112.73 = 721,564.20 : x
  2. Step 2: Convert to fraction form
    1,333,411.51/1,840,112.73 = 721,564.20/x
  3. Step 3: Cross multiply
    1,333,411.51x = 1,840,112.73 × 721,564.20
  4. Step 4: Simplify right side
    1,333,411.51x = 1,327,759,469,932.27
  5. Step 5: Solve for x
    x = 1,327,759,469,932.27/1,333,411.51
  6. Step 6: Final answer
    x = 995,761.22

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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.