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Finding the Fourth Proportional to 509,940.30, 764,910.45 and 244,219.80

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Solution

The fourth proportional to 509,940.30, 764,910.45 and 244,219.80 is: 366,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,940.30 : 764,910.45 = 244,219.80 : x
  2. Step 2: Convert to fraction form
    509,940.30/764,910.45 = 244,219.80/x
  3. Step 3: Cross multiply
    509,940.30x = 764,910.45 × 244,219.80
  4. Step 4: Simplify right side
    509,940.30x = 186,806,277,116.91
  5. Step 5: Solve for x
    x = 186,806,277,116.91/509,940.30
  6. Step 6: Final answer
    x = 366,329.70

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1.5x scale

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.