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Finding the Fourth Proportional to 466,872.72, 644,318.72 and 262,945.90

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Solution

The fourth proportional to 466,872.72, 644,318.72 and 262,945.90 is: 362,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,872.72 : 644,318.72 = 262,945.90 : x
  2. Step 2: Convert to fraction form
    466,872.72/644,318.72 = 262,945.90/x
  3. Step 3: Cross multiply
    466,872.72x = 644,318.72 × 262,945.90
  4. Step 4: Simplify right side
    466,872.72x = 169,420,965,717.25
  5. Step 5: Solve for x
    x = 169,420,965,717.25/466,872.72
  6. Step 6: Final answer
    x = 362,884.70

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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.