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Finding the Fourth Proportional to 313,682.20, 470,523.30 and 311,932.60

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Solution

The fourth proportional to 313,682.20, 470,523.30 and 311,932.60 is: 467,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,682.20 : 470,523.30 = 311,932.60 : x
  2. Step 2: Convert to fraction form
    313,682.20/470,523.30 = 311,932.60/x
  3. Step 3: Cross multiply
    313,682.20x = 470,523.30 × 311,932.60
  4. Step 4: Simplify right side
    313,682.20x = 146,771,556,329.58
  5. Step 5: Solve for x
    x = 146,771,556,329.58/313,682.20
  6. Step 6: Final answer
    x = 467,898.90

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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.