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Finding the Fourth Proportional to 366,199.69, 505,328.90 and 223,005.85

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Solution

The fourth proportional to 366,199.69, 505,328.90 and 223,005.85 is: 307,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,199.69 : 505,328.90 = 223,005.85 : x
  2. Step 2: Convert to fraction form
    366,199.69/505,328.90 = 223,005.85/x
  3. Step 3: Cross multiply
    366,199.69x = 505,328.90 × 223,005.85
  4. Step 4: Simplify right side
    366,199.69x = 112,691,299,759.04
  5. Step 5: Solve for x
    x = 112,691,299,759.04/366,199.69
  6. Step 6: Final answer
    x = 307,731.83

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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.