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Finding the Fourth Proportional to 264,879.90, 397,319.85 and 146,490.30

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Solution

The fourth proportional to 264,879.90, 397,319.85 and 146,490.30 is: 219,735.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,879.90 : 397,319.85 = 146,490.30 : x
  2. Step 2: Convert to fraction form
    264,879.90/397,319.85 = 146,490.30/x
  3. Step 3: Cross multiply
    264,879.90x = 397,319.85 × 146,490.30
  4. Step 4: Simplify right side
    264,879.90x = 58,203,504,022.46
  5. Step 5: Solve for x
    x = 58,203,504,022.46/264,879.90
  6. Step 6: Final answer
    x = 219,735.45

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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.