Home / 1,309,813.12-1,806,880.71-765,593.38

Finding the Fourth Proportional to 1,309,813.12, 1,806,880.71 and 765,593.38

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Solution

The fourth proportional to 1,309,813.12, 1,806,880.71 and 765,593.38 is: 1,056,132.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,813.12 : 1,806,880.71 = 765,593.38 : x
  2. Step 2: Convert to fraction form
    1,309,813.12/1,806,880.71 = 765,593.38/x
  3. Step 3: Cross multiply
    1,309,813.12x = 1,806,880.71 × 765,593.38
  4. Step 4: Simplify right side
    1,309,813.12x = 1,383,335,910,025.70
  5. Step 5: Solve for x
    x = 1,383,335,910,025.70/1,309,813.12
  6. Step 6: Final answer
    x = 1,056,132.27

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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.