Home / 1,386,520.77-2,079,753.44-628,220.91

Finding the Fourth Proportional to 1,386,520.77, 2,079,753.44 and 628,220.91

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Solution

The fourth proportional to 1,386,520.77, 2,079,753.44 and 628,220.91 is: 942,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,520.77 : 2,079,753.44 = 628,220.91 : x
  2. Step 2: Convert to fraction form
    1,386,520.77/2,079,753.44 = 628,220.91/x
  3. Step 3: Cross multiply
    1,386,520.77x = 2,079,753.44 × 628,220.91
  4. Step 4: Simplify right side
    1,386,520.77x = 1,306,544,595,511.33
  5. Step 5: Solve for x
    x = 1,306,544,595,511.33/1,386,520.77
  6. Step 6: Final answer
    x = 942,318.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.