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Finding the Fourth Proportional to 496,610.56, 685,338.12 and 281,759.68

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Solution

The fourth proportional to 496,610.56, 685,338.12 and 281,759.68 is: 388,837.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,610.56 : 685,338.12 = 281,759.68 : x
  2. Step 2: Convert to fraction form
    496,610.56/685,338.12 = 281,759.68/x
  3. Step 3: Cross multiply
    496,610.56x = 685,338.12 × 281,759.68
  4. Step 4: Simplify right side
    496,610.56x = 193,100,649,383.00
  5. Step 5: Solve for x
    x = 193,100,649,383.00/496,610.56
  6. Step 6: Final answer
    x = 388,837.18

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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.