Home / 874,094.28-1,311,141.42-313,522.44

Finding the Fourth Proportional to 874,094.28, 1,311,141.42 and 313,522.44

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Solution

The fourth proportional to 874,094.28, 1,311,141.42 and 313,522.44 is: 470,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,094.28 : 1,311,141.42 = 313,522.44 : x
  2. Step 2: Convert to fraction form
    874,094.28/1,311,141.42 = 313,522.44/x
  3. Step 3: Cross multiply
    874,094.28x = 1,311,141.42 × 313,522.44
  4. Step 4: Simplify right side
    874,094.28x = 411,072,257,183.47
  5. Step 5: Solve for x
    x = 411,072,257,183.47/874,094.28
  6. Step 6: Final answer
    x = 470,283.66

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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.