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Finding the Fourth Proportional to 609,211.94, 913,958.05 and 204,457.86

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Solution

The fourth proportional to 609,211.94, 913,958.05 and 204,457.86 is: 306,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,211.94 : 913,958.05 = 204,457.86 : x
  2. Step 2: Convert to fraction form
    609,211.94/913,958.05 = 204,457.86/x
  3. Step 3: Cross multiply
    609,211.94x = 913,958.05 × 204,457.86
  4. Step 4: Simplify right side
    609,211.94x = 186,865,907,032.77
  5. Step 5: Solve for x
    x = 186,865,907,032.77/609,211.94
  6. Step 6: Final answer
    x = 306,733.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.