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Finding the Fourth Proportional to 570,490.44, 855,755.50 and 270,816.64

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Solution

The fourth proportional to 570,490.44, 855,755.50 and 270,816.64 is: 406,234.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,490.44 : 855,755.50 = 270,816.64 : x
  2. Step 2: Convert to fraction form
    570,490.44/855,755.50 = 270,816.64/x
  3. Step 3: Cross multiply
    570,490.44x = 855,755.50 × 270,816.64
  4. Step 4: Simplify right side
    570,490.44x = 231,752,829,171.52
  5. Step 5: Solve for x
    x = 231,752,829,171.52/570,490.44
  6. Step 6: Final answer
    x = 406,234.38

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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.