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Finding the Fourth Proportional to 395,696.37, 546,087.78 and 223,554.63

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Solution

The fourth proportional to 395,696.37, 546,087.78 and 223,554.63 is: 308,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,696.37 : 546,087.78 = 223,554.63 : x
  2. Step 2: Convert to fraction form
    395,696.37/546,087.78 = 223,554.63/x
  3. Step 3: Cross multiply
    395,696.37x = 546,087.78 × 223,554.63
  4. Step 4: Simplify right side
    395,696.37x = 122,080,451,605.42
  5. Step 5: Solve for x
    x = 122,080,451,605.42/395,696.37
  6. Step 6: Final answer
    x = 308,520.52

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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.