Which geometric ratio, frequently used in classical architecture, is now being leveraged in retail analytics to determine optimal product placement zones in store layouts?

In architectural design for retail spaces, analytics plays a crucial role in optimizing customer flow and engagement. One fascinating intersection of architecture and retail analytics involves the use of specific spatial proportions that have been found to influence shopper behavior and perception. This trivia question explores how ancient architectural principles are being leveraged in modern retail analytics to create more appealing and profitable spaces.

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The Golden Ratio (approximately 1:1.618)
The Rule of Thirds (1:1:1)
The Vitruvian Proportion (1:2:3)
The Fibonacci Sequence (applied as spatial intervals)