Home / 805,628.82-1,111,745.43-443,052.57

Finding the Fourth Proportional to 805,628.82, 1,111,745.43 and 443,052.57

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Solution

The fourth proportional to 805,628.82, 1,111,745.43 and 443,052.57 is: 611,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,628.82 : 1,111,745.43 = 443,052.57 : x
  2. Step 2: Convert to fraction form
    805,628.82/1,111,745.43 = 443,052.57/x
  3. Step 3: Cross multiply
    805,628.82x = 1,111,745.43 × 443,052.57
  4. Step 4: Simplify right side
    805,628.82x = 492,561,669,947.26
  5. Step 5: Solve for x
    x = 492,561,669,947.26/805,628.82
  6. Step 6: Final answer
    x = 611,400.26

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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.