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Finding the Fourth Proportional to 353,772.38, 529,662.05 and 317,900.11

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Solution

The fourth proportional to 353,772.38, 529,662.05 and 317,900.11 is: 475,954.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,772.38 : 529,662.05 = 317,900.11 : x
  2. Step 2: Convert to fraction form
    353,772.38/529,662.05 = 317,900.11/x
  3. Step 3: Cross multiply
    353,772.38x = 529,662.05 × 317,900.11
  4. Step 4: Simplify right side
    353,772.38x = 168,379,622,633.67
  5. Step 5: Solve for x
    x = 168,379,622,633.67/353,772.38
  6. Step 6: Final answer
    x = 475,954.69

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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.