Home / 986,669.40-1,361,866.92-557,200.92

Finding the Fourth Proportional to 986,669.40, 1,361,866.92 and 557,200.92

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Solution

The fourth proportional to 986,669.40, 1,361,866.92 and 557,200.92 is: 769,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,669.40 : 1,361,866.92 = 557,200.92 : x
  2. Step 2: Convert to fraction form
    986,669.40/1,361,866.92 = 557,200.92/x
  3. Step 3: Cross multiply
    986,669.40x = 1,361,866.92 × 557,200.92
  4. Step 4: Simplify right side
    986,669.40x = 758,833,500,741.57
  5. Step 5: Solve for x
    x = 758,833,500,741.57/986,669.40
  6. Step 6: Final answer
    x = 769,085.88

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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.