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Finding the Fourth Proportional to 371,331.89, 512,446.15 and 226,144.48

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Solution

The fourth proportional to 371,331.89, 512,446.15 and 226,144.48 is: 312,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,331.89 : 512,446.15 = 226,144.48 : x
  2. Step 2: Convert to fraction form
    371,331.89/512,446.15 = 226,144.48/x
  3. Step 3: Cross multiply
    371,331.89x = 512,446.15 × 226,144.48
  4. Step 4: Simplify right side
    371,331.89x = 115,886,866,122.88
  5. Step 5: Solve for x
    x = 115,886,866,122.88/371,331.89
  6. Step 6: Final answer
    x = 312,084.34

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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.