Home / 1,333,409.05-1,840,109.33-721,561.74

Finding the Fourth Proportional to 1,333,409.05, 1,840,109.33 and 721,561.74

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Solution

The fourth proportional to 1,333,409.05, 1,840,109.33 and 721,561.74 is: 995,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,409.05 : 1,840,109.33 = 721,561.74 : x
  2. Step 2: Convert to fraction form
    1,333,409.05/1,840,109.33 = 721,561.74/x
  3. Step 3: Cross multiply
    1,333,409.05x = 1,840,109.33 × 721,561.74
  4. Step 4: Simplify right side
    1,333,409.05x = 1,327,752,489,787.43
  5. Step 5: Solve for x
    x = 1,327,752,489,787.43/1,333,409.05
  6. Step 6: Final answer
    x = 995,757.82

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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.