A fraction in the harmonic series...........would get u close........to the gr.......if u multiplied it by ten...........1/6...............


the golden ratio =

1.61803398875

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More info

Golden ratio - Wikipedia

https://en.wikipedia.org/wiki/Golden_ratio

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In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. The figure on the right ...

‎Golden ratio · ‎Golden ratio base · ‎The Golden Ratio (album) · ‎Golden rectangle

Golden Ratio - Math is Fun

https://www.mathsisfun.com/numbers/golden-ratio.html

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The golden ratio (symbol is the Greek letter "phi" shown at left) is a special number approximately equal to 1.618. It appears many times in geometry, art, ...