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Finding the Fourth Proportional to 608,736.70, 913,105.05 and 276,312.70

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Solution

The fourth proportional to 608,736.70, 913,105.05 and 276,312.70 is: 414,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,736.70 : 913,105.05 = 276,312.70 : x
  2. Step 2: Convert to fraction form
    608,736.70/913,105.05 = 276,312.70/x
  3. Step 3: Cross multiply
    608,736.70x = 913,105.05 × 276,312.70
  4. Step 4: Simplify right side
    608,736.70x = 252,302,521,749.14
  5. Step 5: Solve for x
    x = 252,302,521,749.14/608,736.70
  6. Step 6: Final answer
    x = 414,469.05

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Similar ratio
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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.