Home / 863,612.20-1,295,418.30-800,626.60

Finding the Fourth Proportional to 863,612.20, 1,295,418.30 and 800,626.60

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Solution

The fourth proportional to 863,612.20, 1,295,418.30 and 800,626.60 is: 1,200,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,612.20 : 1,295,418.30 = 800,626.60 : x
  2. Step 2: Convert to fraction form
    863,612.20/1,295,418.30 = 800,626.60/x
  3. Step 3: Cross multiply
    863,612.20x = 1,295,418.30 × 800,626.60
  4. Step 4: Simplify right side
    863,612.20x = 1,037,146,349,106.78
  5. Step 5: Solve for x
    x = 1,037,146,349,106.78/863,612.20
  6. Step 6: Final answer
    x = 1,200,939.90

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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.