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Finding the Fourth Proportional to 469,009.50, 647,233.11 and 267,805.50

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Solution

The fourth proportional to 469,009.50, 647,233.11 and 267,805.50 is: 369,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,009.50 : 647,233.11 = 267,805.50 : x
  2. Step 2: Convert to fraction form
    469,009.50/647,233.11 = 267,805.50/x
  3. Step 3: Cross multiply
    469,009.50x = 647,233.11 × 267,805.50
  4. Step 4: Simplify right side
    469,009.50x = 173,332,586,640.11
  5. Step 5: Solve for x
    x = 173,332,586,640.11/469,009.50
  6. Step 6: Final answer
    x = 369,571.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.