Home / 677,311.19-1,016,136.22-478,020.82

Finding the Fourth Proportional to 677,311.19, 1,016,136.22 and 478,020.82

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Solution

The fourth proportional to 677,311.19, 1,016,136.22 and 478,020.82 is: 717,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,311.19 : 1,016,136.22 = 478,020.82 : x
  2. Step 2: Convert to fraction form
    677,311.19/1,016,136.22 = 478,020.82/x
  3. Step 3: Cross multiply
    677,311.19x = 1,016,136.22 × 478,020.82
  4. Step 4: Simplify right side
    677,311.19x = 485,734,263,979.94
  5. Step 5: Solve for x
    x = 485,734,263,979.94/677,311.19
  6. Step 6: Final answer
    x = 717,150.80

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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.