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Finding the Fourth Proportional to 500,794.92, 691,114.68 and 274,440.42

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Solution

The fourth proportional to 500,794.92, 691,114.68 and 274,440.42 is: 378,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,794.92 : 691,114.68 = 274,440.42 : x
  2. Step 2: Convert to fraction form
    500,794.92/691,114.68 = 274,440.42/x
  3. Step 3: Cross multiply
    500,794.92x = 691,114.68 × 274,440.42
  4. Step 4: Simplify right side
    500,794.92x = 189,669,803,047.37
  5. Step 5: Solve for x
    x = 189,669,803,047.37/500,794.92
  6. Step 6: Final answer
    x = 378,737.47

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.