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Finding the Fourth Proportional to 605,647.72, 908,194.74 and 226,290.21

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Solution

The fourth proportional to 605,647.72, 908,194.74 and 226,290.21 is: 339,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,647.72 : 908,194.74 = 226,290.21 : x
  2. Step 2: Convert to fraction form
    605,647.72/908,194.74 = 226,290.21/x
  3. Step 3: Cross multiply
    605,647.72x = 908,194.74 × 226,290.21
  4. Step 4: Simplify right side
    605,647.72x = 205,515,578,435.50
  5. Step 5: Solve for x
    x = 205,515,578,435.50/605,647.72
  6. Step 6: Final answer
    x = 339,331.88

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Double scale
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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.