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Finding the Fourth Proportional to 566,808.05, 782,183.34 and 308,687.82

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Solution

The fourth proportional to 566,808.05, 782,183.34 and 308,687.82 is: 425,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,808.05 : 782,183.34 = 308,687.82 : x
  2. Step 2: Convert to fraction form
    566,808.05/782,183.34 = 308,687.82/x
  3. Step 3: Cross multiply
    566,808.05x = 782,183.34 × 308,687.82
  4. Step 4: Simplify right side
    566,808.05x = 241,450,470,064.92
  5. Step 5: Solve for x
    x = 241,450,470,064.92/566,808.05
  6. Step 6: Final answer
    x = 425,982.79

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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.