Home / 1,215,896.56-1,677,938.87-699,640.18

Finding the Fourth Proportional to 1,215,896.56, 1,677,938.87 and 699,640.18

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Solution

The fourth proportional to 1,215,896.56, 1,677,938.87 and 699,640.18 is: 965,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,896.56 : 1,677,938.87 = 699,640.18 : x
  2. Step 2: Convert to fraction form
    1,215,896.56/1,677,938.87 = 699,640.18/x
  3. Step 3: Cross multiply
    1,215,896.56x = 1,677,938.87 × 699,640.18
  4. Step 4: Simplify right side
    1,215,896.56x = 1,173,953,450,590.05
  5. Step 5: Solve for x
    x = 1,173,953,450,590.05/1,215,896.56
  6. Step 6: Final answer
    x = 965,504.38

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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.