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Finding the Fourth Proportional to 263,613.80, 394,643.10 and 248,234.60

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Solution

The fourth proportional to 263,613.80, 394,643.10 and 248,234.60 is: 371,619.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,613.80 : 394,643.10 = 248,234.60 : x
  2. Step 2: Convert to fraction form
    263,613.80/394,643.10 = 248,234.60/x
  3. Step 3: Cross multiply
    263,613.80x = 394,643.10 × 248,234.60
  4. Step 4: Simplify right side
    263,613.80x = 97,964,072,071.26
  5. Step 5: Solve for x
    x = 97,964,072,071.26/263,613.80
  6. Step 6: Final answer
    x = 371,619.67

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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.