Okey, What do we know ? We know these formulas and have charts.
USDLFX = ((USDCHF * USDJPY * USDCAD) / (EURUSD * GBPUSD * AUDUSD))^(1/7)
EURLFX = USDLFX * EURUSD
EURUSD : EURLFX / USDLFX
An example of the second case ( same time / same direction )
http://i.hizliresim.com/b5YRYV.jpg
USDLFX = ((USDCHF * USDJPY * USDCAD) / (EURUSD * GBPUSD * AUDUSD))^(1/7)
EURLFX = USDLFX * EURUSD
EURUSD : EURLFX / USDLFX
An example of the second case ( same time / same direction )
http://i.hizliresim.com/b5YRYV.jpg