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Finding the Fourth Proportional to 496,609.56, 685,336.74 and 281,758.68

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Solution

The fourth proportional to 496,609.56, 685,336.74 and 281,758.68 is: 388,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,609.56 : 685,336.74 = 281,758.68 : x
  2. Step 2: Convert to fraction form
    496,609.56/685,336.74 = 281,758.68/x
  3. Step 3: Cross multiply
    496,609.56x = 685,336.74 × 281,758.68
  4. Step 4: Simplify right side
    496,609.56x = 193,099,575,217.90
  5. Step 5: Solve for x
    x = 193,099,575,217.90/496,609.56
  6. Step 6: Final answer
    x = 388,835.80

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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.