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Finding the Fourth Proportional to 311,804.01, 467,495.85 and 251,906.18

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Solution

The fourth proportional to 311,804.01, 467,495.85 and 251,906.18 is: 377,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,804.01 : 467,495.85 = 251,906.18 : x
  2. Step 2: Convert to fraction form
    311,804.01/467,495.85 = 251,906.18/x
  3. Step 3: Cross multiply
    311,804.01x = 467,495.85 × 251,906.18
  4. Step 4: Simplify right side
    311,804.01x = 117,765,093,661.35
  5. Step 5: Solve for x
    x = 117,765,093,661.35/311,804.01
  6. Step 6: Final answer
    x = 377,689.48

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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.