How do Calculate denier of polyester filament?

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Calculate denier of polyester filament from the given data:

Length in meters = 550,000

Weight               = 4.5 kgs (4500 grams)

Equation:    Denier = 9000* Weight of filament in grams

                                Length of filament in meters

                                    = 9000*4500

                                          550,000

Answer= 73.66 Denier

Note: this calculation is up to two digits. For more accurate answers use calculation up to 9 digits.

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