Home / 986,769.28-1,361,776.92-557,125.84

Finding the Fourth Proportional to 986,769.28, 1,361,776.92 and 557,125.84

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Solution

The fourth proportional to 986,769.28, 1,361,776.92 and 557,125.84 is: 768,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,769.28 : 1,361,776.92 = 557,125.84 : x
  2. Step 2: Convert to fraction form
    986,769.28/1,361,776.92 = 557,125.84/x
  3. Step 3: Cross multiply
    986,769.28x = 1,361,776.92 × 557,125.84
  4. Step 4: Simplify right side
    986,769.28x = 758,681,110,447.61
  5. Step 5: Solve for x
    x = 758,681,110,447.61/986,769.28
  6. Step 6: Final answer
    x = 768,853.60

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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.