Home / 810,234.14-1,118,027.79-447,636.38

Finding the Fourth Proportional to 810,234.14, 1,118,027.79 and 447,636.38

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Solution

The fourth proportional to 810,234.14, 1,118,027.79 and 447,636.38 is: 617,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,234.14 : 1,118,027.79 = 447,636.38 : x
  2. Step 2: Convert to fraction form
    810,234.14/1,118,027.79 = 447,636.38/x
  3. Step 3: Cross multiply
    810,234.14x = 1,118,027.79 × 447,636.38
  4. Step 4: Simplify right side
    810,234.14x = 500,469,907,064.86
  5. Step 5: Solve for x
    x = 500,469,907,064.86/810,234.14
  6. Step 6: Final answer
    x = 617,685.54

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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.