Home / 780,874.40-1,171,311.60-189,898.40

Finding the Fourth Proportional to 780,874.40, 1,171,311.60 and 189,898.40

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Solution

The fourth proportional to 780,874.40, 1,171,311.60 and 189,898.40 is: 284,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,874.40 : 1,171,311.60 = 189,898.40 : x
  2. Step 2: Convert to fraction form
    780,874.40/1,171,311.60 = 189,898.40/x
  3. Step 3: Cross multiply
    780,874.40x = 1,171,311.60 × 189,898.40
  4. Step 4: Simplify right side
    780,874.40x = 222,430,198,741.44
  5. Step 5: Solve for x
    x = 222,430,198,741.44/780,874.40
  6. Step 6: Final answer
    x = 284,847.60

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Similar ratio
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1.5x scale

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.