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Finding the Fourth Proportional to 311,792.46, 467,338.77 and 154,131.63

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Solution

The fourth proportional to 311,792.46, 467,338.77 and 154,131.63 is: 231,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,792.46 : 467,338.77 = 154,131.63 : x
  2. Step 2: Convert to fraction form
    311,792.46/467,338.77 = 154,131.63/x
  3. Step 3: Cross multiply
    311,792.46x = 467,338.77 × 154,131.63
  4. Step 4: Simplify right side
    311,792.46x = 72,031,686,382.30
  5. Step 5: Solve for x
    x = 72,031,686,382.30/311,792.46
  6. Step 6: Final answer
    x = 231,024.47

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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.