Home / 862,144.95-1,293,217.44-263,109.18

Finding the Fourth Proportional to 862,144.95, 1,293,217.44 and 263,109.18

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Solution

The fourth proportional to 862,144.95, 1,293,217.44 and 263,109.18 is: 394,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,144.95 : 1,293,217.44 = 263,109.18 : x
  2. Step 2: Convert to fraction form
    862,144.95/1,293,217.44 = 263,109.18/x
  3. Step 3: Cross multiply
    862,144.95x = 1,293,217.44 × 263,109.18
  4. Step 4: Simplify right side
    862,144.95x = 340,257,380,200.10
  5. Step 5: Solve for x
    x = 340,257,380,200.10/862,144.95
  6. Step 6: Final answer
    x = 394,663.77

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Double scale
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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.