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Finding the Fourth Proportional to 603,766.20, 905,519.70 and 266,806.20

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Solution

The fourth proportional to 603,766.20, 905,519.70 and 266,806.20 is: 400,152.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,766.20 : 905,519.70 = 266,806.20 : x
  2. Step 2: Convert to fraction form
    603,766.20/905,519.70 = 266,806.20/x
  3. Step 3: Cross multiply
    603,766.20x = 905,519.70 × 266,806.20
  4. Step 4: Simplify right side
    603,766.20x = 241,598,270,182.14
  5. Step 5: Solve for x
    x = 241,598,270,182.14/603,766.20
  6. Step 6: Final answer
    x = 400,152.03

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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.