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Finding the Fourth Proportional to 264,906.70, 397,360.05 and 115,218.70

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Solution

The fourth proportional to 264,906.70, 397,360.05 and 115,218.70 is: 172,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,906.70 : 397,360.05 = 115,218.70 : x
  2. Step 2: Convert to fraction form
    264,906.70/397,360.05 = 115,218.70/x
  3. Step 3: Cross multiply
    264,906.70x = 397,360.05 × 115,218.70
  4. Step 4: Simplify right side
    264,906.70x = 45,783,308,392.94
  5. Step 5: Solve for x
    x = 45,783,308,392.94/264,906.70
  6. Step 6: Final answer
    x = 172,828.05

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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.