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Finding the Fourth Proportional to 453,910.50, 680,668.80 and 154,310.60

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Solution

The fourth proportional to 453,910.50, 680,668.80 and 154,310.60 is: 231,398.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,910.50 : 680,668.80 = 154,310.60 : x
  2. Step 2: Convert to fraction form
    453,910.50/680,668.80 = 154,310.60/x
  3. Step 3: Cross multiply
    453,910.50x = 680,668.80 × 154,310.60
  4. Step 4: Simplify right side
    453,910.50x = 105,034,410,929.28
  5. Step 5: Solve for x
    x = 105,034,410,929.28/453,910.50
  6. Step 6: Final answer
    x = 231,398.95

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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.