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Finding the Fourth Proportional to 449,648.29, 674,274.79 and 239,236.21

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Solution

The fourth proportional to 449,648.29, 674,274.79 and 239,236.21 is: 358,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,648.29 : 674,274.79 = 239,236.21 : x
  2. Step 2: Convert to fraction form
    449,648.29/674,274.79 = 239,236.21/x
  3. Step 3: Cross multiply
    449,648.29x = 674,274.79 × 239,236.21
  4. Step 4: Simplify right side
    449,648.29x = 161,310,945,258.15
  5. Step 5: Solve for x
    x = 161,310,945,258.15/449,648.29
  6. Step 6: Final answer
    x = 358,749.16

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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.