Home / 986,321.56-1,361,110.31-550,745.63

Finding the Fourth Proportional to 986,321.56, 1,361,110.31 and 550,745.63

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Solution

The fourth proportional to 986,321.56, 1,361,110.31 and 550,745.63 is: 760,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,321.56 : 1,361,110.31 = 550,745.63 : x
  2. Step 2: Convert to fraction form
    986,321.56/1,361,110.31 = 550,745.63/x
  3. Step 3: Cross multiply
    986,321.56x = 1,361,110.31 × 550,745.63
  4. Step 4: Simplify right side
    986,321.56x = 749,625,557,206.36
  5. Step 5: Solve for x
    x = 749,625,557,206.36/986,321.56
  6. Step 6: Final answer
    x = 760,021.47

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1.5x scale

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.