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Finding the Fourth Proportional to 656,010.26, 905,321.72 and 365,621.96

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Solution

The fourth proportional to 656,010.26, 905,321.72 and 365,621.96 is: 504,573.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,010.26 : 905,321.72 = 365,621.96 : x
  2. Step 2: Convert to fraction form
    656,010.26/905,321.72 = 365,621.96/x
  3. Step 3: Cross multiply
    656,010.26x = 905,321.72 × 365,621.96
  4. Step 4: Simplify right side
    656,010.26x = 331,005,498,084.42
  5. Step 5: Solve for x
    x = 331,005,498,084.42/656,010.26
  6. Step 6: Final answer
    x = 504,573.66

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1.5x scale

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.