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Finding the Fourth Proportional to 352,211.75, 485,381.02 and 345,733.67

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Solution

The fourth proportional to 352,211.75, 485,381.02 and 345,733.67 is: 476,453.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,211.75 : 485,381.02 = 345,733.67 : x
  2. Step 2: Convert to fraction form
    352,211.75/485,381.02 = 345,733.67/x
  3. Step 3: Cross multiply
    352,211.75x = 485,381.02 × 345,733.67
  4. Step 4: Simplify right side
    352,211.75x = 167,812,561,392.94
  5. Step 5: Solve for x
    x = 167,812,561,392.94/352,211.75
  6. Step 6: Final answer
    x = 476,453.61

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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.