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Finding the Fourth Proportional to 313,266.80, 469,900.20 and 308,082.80

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Solution

The fourth proportional to 313,266.80, 469,900.20 and 308,082.80 is: 462,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,266.80 : 469,900.20 = 308,082.80 : x
  2. Step 2: Convert to fraction form
    313,266.80/469,900.20 = 308,082.80/x
  3. Step 3: Cross multiply
    313,266.80x = 469,900.20 × 308,082.80
  4. Step 4: Simplify right side
    313,266.80x = 144,768,169,336.56
  5. Step 5: Solve for x
    x = 144,768,169,336.56/313,266.80
  6. Step 6: Final answer
    x = 462,124.20

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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.