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Finding the Fourth Proportional to 496,716.69, 685,450.01 and 281,843.94

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Solution

The fourth proportional to 496,716.69, 685,450.01 and 281,843.94 is: 388,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,716.69 : 685,450.01 = 281,843.94 : x
  2. Step 2: Convert to fraction form
    496,716.69/685,450.01 = 281,843.94/x
  3. Step 3: Cross multiply
    496,716.69x = 685,450.01 × 281,843.94
  4. Step 4: Simplify right side
    496,716.69x = 193,189,931,491.44
  5. Step 5: Solve for x
    x = 193,189,931,491.44/496,716.69
  6. Step 6: Final answer
    x = 388,933.84

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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.