Home / 823,136.40-1,234,704.60-262,227.60

Finding the Fourth Proportional to 823,136.40, 1,234,704.60 and 262,227.60

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Solution

The fourth proportional to 823,136.40, 1,234,704.60 and 262,227.60 is: 393,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,136.40 : 1,234,704.60 = 262,227.60 : x
  2. Step 2: Convert to fraction form
    823,136.40/1,234,704.60 = 262,227.60/x
  3. Step 3: Cross multiply
    823,136.40x = 1,234,704.60 × 262,227.60
  4. Step 4: Simplify right side
    823,136.40x = 323,773,623,966.96
  5. Step 5: Solve for x
    x = 323,773,623,966.96/823,136.40
  6. Step 6: Final answer
    x = 393,341.40

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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.