Home / 986,855.96-1,361,785.21-557,178.50

Finding the Fourth Proportional to 986,855.96, 1,361,785.21 and 557,178.50

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Solution

The fourth proportional to 986,855.96, 1,361,785.21 and 557,178.50 is: 768,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,855.96 : 1,361,785.21 = 557,178.50 : x
  2. Step 2: Convert to fraction form
    986,855.96/1,361,785.21 = 557,178.50/x
  3. Step 3: Cross multiply
    986,855.96x = 1,361,785.21 × 557,178.50
  4. Step 4: Simplify right side
    986,855.96x = 758,757,440,629.99
  5. Step 5: Solve for x
    x = 758,757,440,629.99/986,855.96
  6. Step 6: Final answer
    x = 768,863.41

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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.